Cognizant Interview Questions for Freshers - Wikitechy https://www.wikitechy.com/interview-questions/tag/cognizant-interview-questions-for-freshers/ Interview Questions Sat, 18 Sep 2021 11:19:22 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png Cognizant Interview Questions for Freshers - Wikitechy https://www.wikitechy.com/interview-questions/tag/cognizant-interview-questions-for-freshers/ 32 32 A boat covers a distance of 30 km downstream in 2 hours while it takes 6 hours to cover the same distance upstream. What is the speed of the boat in km/hr ? https://www.wikitechy.com/interview-questions/boats-and-streams/a-boat-covers-a-distance-of-30-km-downstream-in-2-hours-while-it-takes-6-hours-to-cover-the-same-distance-upstream-what-is-the-speed-of-the-boat-in-km-hr/ https://www.wikitechy.com/interview-questions/boats-and-streams/a-boat-covers-a-distance-of-30-km-downstream-in-2-hours-while-it-takes-6-hours-to-cover-the-same-distance-upstream-what-is-the-speed-of-the-boat-in-km-hr/#respond Wed, 18 Aug 2021 02:44:04 +0000 https://www.wikitechy.com/interview-questions/?p=2078

A boat covers a distance of 30 km downstream in 2 hours while it takes 6 hours to cover the same distance upstream. What is the speed of the boat in km/hr ?

A. 5

B. 7.5

C. 10

D. 12

Answer : C. 10

Explanation :

  • Speed of boat downstream
    = Distance covered / Time taken
    = 30/2
    = 15 km/h
  • Now, speed of boat upstream
    = Distance covered / Time taken
    = 30/6
    = 5 km/h
  • Now, speed of boat = (Speed downstream + Speed upstream)/2
    = (15 + 5)/2
    = 20/2
    = 10 km/h.
]]> https://www.wikitechy.com/interview-questions/boats-and-streams/a-boat-covers-a-distance-of-30-km-downstream-in-2-hours-while-it-takes-6-hours-to-cover-the-same-distance-upstream-what-is-the-speed-of-the-boat-in-km-hr/feed/ 0 A motorboat whose speed is 15 km/hr in still water goes 30km downstream and comes back in four and a half hours. The speed of the stream is ? https://www.wikitechy.com/interview-questions/boats-and-streams/a-motorboat-whose-speed-is-15-km-hr-in-still-water-goes-30km-downstream-and-comes-back-in-four-and-a-half-hours-the-speed-of-the-stream-is/ https://www.wikitechy.com/interview-questions/boats-and-streams/a-motorboat-whose-speed-is-15-km-hr-in-still-water-goes-30km-downstream-and-comes-back-in-four-and-a-half-hours-the-speed-of-the-stream-is/#respond Wed, 18 Aug 2021 02:39:49 +0000 https://www.wikitechy.com/interview-questions/?p=2075

A motorboat whose speed is 15 km/hr in still water goes 30km downstream and comes back in four and a half hours. The speed of the stream is ?

A. 4.5 km/hr

B. 6 km/hr

C. 7 km/hr

D. 5 km/hr

Answer : D. 5 km/hr

Explanation :

Let the speed of the stream be x km/hr. Then,
Speed downstream = (15 + x) km/hr
Speed upstream = (15 – x) km/hr

We know from question that it took 4(1/2)hrs to travel back to same point.
So, (30/15 + x) + (30/15 − x) = 4(1/2)
=> 900/225 − x2 = 9/2
=> 9x2 = 225
=> x = 5km/hr.

]]> https://www.wikitechy.com/interview-questions/boats-and-streams/a-motorboat-whose-speed-is-15-km-hr-in-still-water-goes-30km-downstream-and-comes-back-in-four-and-a-half-hours-the-speed-of-the-stream-is/feed/ 0 In 36.5 weeks, Miguel raised $2372.50 for cancer research. How much money will he raise 20 weeks ? https://www.wikitechy.com/interview-questions/chain-rule/in-36-5-weeks-miguel-raised-2372-50-for-cancer-research-how-much-money-will-he-raise-20-weeks/ https://www.wikitechy.com/interview-questions/chain-rule/in-36-5-weeks-miguel-raised-2372-50-for-cancer-research-how-much-money-will-he-raise-20-weeks/#respond Tue, 17 Aug 2021 21:57:16 +0000 https://www.wikitechy.com/interview-questions/?p=1980

In 36.5 weeks, Miguel raised $2372.50 for cancer research. How much money will he raise 20 weeks ?

A. $1200

B. $1300

C. $1350

D. $1100

Answer : B. $1300

Explanation :

This is a situation of direct variation.

Less number of weeks —-> amount raised will be less .
Given :
Miguel raised $2,372.50 in 36.5 weeks
Amount raised in one week is
= 2372.5 / 36.5
= $65
Amount raised in 20 weeks is
= 65 x 20
= $1300
Hence, the money raised in 20 weeks is $1300

]]> https://www.wikitechy.com/interview-questions/chain-rule/in-36-5-weeks-miguel-raised-2372-50-for-cancer-research-how-much-money-will-he-raise-20-weeks/feed/ 0 75 basketballs cost $1,143.75. Find the cost of 26 basketballs ? https://www.wikitechy.com/interview-questions/chain-rule/75-basketballs-cost-1-143-75-find-the-cost-of-26-basketballs/ https://www.wikitechy.com/interview-questions/chain-rule/75-basketballs-cost-1-143-75-find-the-cost-of-26-basketballs/#respond Tue, 17 Aug 2021 21:55:04 +0000 https://www.wikitechy.com/interview-questions/?p=1979

75 basketballs cost $1143.75. Find the cost of 26 basketballs.

A. $ 396.50

B. $ 346.50

C. $ 333.50

D. $ 426.50

Answer : A. $ 396.50

Explanation:

This is a situation of direct variation.

Because, less number of basket balls —–> cost will be less.
Given :
75 basketballs cost = $1,143.75.
Cost of one basket ball = 1143.75 / 75 = 15.25
Then, cost of 26 basket balls = 15.25 x 26 = 396.50.
Hence, the cost of 26 basket balls is $ 396.50.

]]> https://www.wikitechy.com/interview-questions/chain-rule/75-basketballs-cost-1-143-75-find-the-cost-of-26-basketballs/feed/ 0 A garrison of 500 men had provisions for 24 days. However, a reinforcement ? https://www.wikitechy.com/interview-questions/chain-rule/a-garrison-of-500-men-had-provisions-for-24-days-however-a-reinforcement/ https://www.wikitechy.com/interview-questions/chain-rule/a-garrison-of-500-men-had-provisions-for-24-days-however-a-reinforcement/#respond Tue, 17 Aug 2021 21:54:05 +0000 https://www.wikitechy.com/interview-questions/?p=1978

A garrison of 500 men had provisions for 24 days. However, a reinforcement ?

A. 15 days

B. 16 days

C. 1/2 days

D. 18 days

Answer : A. 15 days

Explanation:

Given that fort had provision for 500 persons for 27 days Hence, after 3 days, the remaining food is sufficient for 500 persons for 24 days.
Remaining persons after 3 days = 500 + 300 = 800
Assume that after 10 days,the remaining food is sufficient for 800 persons for x days.

More men, Less days (Indirect Proportion)
⇒ Men 500 : 800 :: x : 24
⇒ 500 × 24 = 800x
⇒ 5 × 24 = 8x
⇒ x = 5 × 3 = 15

]]> https://www.wikitechy.com/interview-questions/chain-rule/a-garrison-of-500-men-had-provisions-for-24-days-however-a-reinforcement/feed/ 0 If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web ? https://www.wikitechy.com/interview-questions/chain-rule/if-7-spiders-make-7-webs-in-7-days-then-1-spider-will-make-1-web/ https://www.wikitechy.com/interview-questions/chain-rule/if-7-spiders-make-7-webs-in-7-days-then-1-spider-will-make-1-web/#respond Tue, 17 Aug 2021 21:52:15 +0000 https://www.wikitechy.com/interview-questions/?p=1977

If 7 spiders make 7 webs in 7 days, then 1 spider will make 1 web ?

A. 1

B. 7/2

C. 7

D. 49

Answer : C. 7

Explanation:

Let the required number days be x.
Less spiders, More days (Indirect Proportion)
Less webs, Less days (Direct Proportion)
Hence we can write as,

If 7 spiders make 7 webs in 7 days
    • 1 x 7 x x = 7 x 1 x 7
    x = 7.

 

]]> https://www.wikitechy.com/interview-questions/chain-rule/if-7-spiders-make-7-webs-in-7-days-then-1-spider-will-make-1-web/feed/ 0 In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk ? https://www.wikitechy.com/interview-questions/chain-rule/in-a-dairy-farm-40-cows-eat-40-bags-of-husk-in-40-days-in-how-many-days-one-cow-will-eat-one-bag-of-husk/ https://www.wikitechy.com/interview-questions/chain-rule/in-a-dairy-farm-40-cows-eat-40-bags-of-husk-in-40-days-in-how-many-days-one-cow-will-eat-one-bag-of-husk/#respond Tue, 17 Aug 2021 21:50:57 +0000 https://www.wikitechy.com/interview-questions/?p=1976

In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk ?

A. 1

B. 1/40

C. 40

D. 80

Answer : C. 40

Explanation:

Assume that in x days, one cow will eat one bag of husk.
More cows, less days (Indirect proportion)
More bags, more days (Direct proportion)
Hence we can write as

In a dairy farm, 40 cows eat 40 bags of husk
    • 1 x 40 x x = 40 x 1 x 40
    x = 40.
]]> https://www.wikitechy.com/interview-questions/chain-rule/in-a-dairy-farm-40-cows-eat-40-bags-of-husk-in-40-days-in-how-many-days-one-cow-will-eat-one-bag-of-husk/feed/ 0 A man sitting on a train travelling at the rate of 50 km/hr observes that it takes 9 sec for goods train travelling in the opposite direction to pass him. If the goods train is 187.5m long. Find its speed ? https://www.wikitechy.com/interview-questions/time-and-distance/a-man-sitting-on-a-train-travelling-at-the-rate-of-50-km-hr-observes-that-it-takes-9-sec-for-goods-train-travelling-in-the-opposite-direction-to-pass-him-if-the-goods-train-is-187-5m-long-find-its-s/ https://www.wikitechy.com/interview-questions/time-and-distance/a-man-sitting-on-a-train-travelling-at-the-rate-of-50-km-hr-observes-that-it-takes-9-sec-for-goods-train-travelling-in-the-opposite-direction-to-pass-him-if-the-goods-train-is-187-5m-long-find-its-s/#respond Tue, 17 Aug 2021 21:35:54 +0000 https://www.wikitechy.com/interview-questions/?p=1968

A man sitting on a train travelling at the rate of 50 km/hr observes that it takes 9 sec for goods train travelling in the opposite direction to pass him. If the goods train is 187.5m long. Find its speed ?

A. 40 km/hr

B. 30 km/hr

C. 24 km/hr

D. 25 km/hr

Answer : C. 24 km/hr

Explanation :

Let the speed of goods train be x km/hr.
Then, (50 + x) * ( 5 / 18 ) = 187.5 / 9
⇒ x = 25 km/hr.

]]> https://www.wikitechy.com/interview-questions/time-and-distance/a-man-sitting-on-a-train-travelling-at-the-rate-of-50-km-hr-observes-that-it-takes-9-sec-for-goods-train-travelling-in-the-opposite-direction-to-pass-him-if-the-goods-train-is-187-5m-long-find-its-s/feed/ 0 A cyclist drove one kilometre, with the wind in his back, in three minutes and drove the same way back, against the wind in four minutes. If we assume that the cyclist always puts constant force on the pedals, how much time would it take him to drive one kilometre without wind ? https://www.wikitechy.com/interview-questions/time-and-distance/a-cyclist-drove-one-kilometre-with-the-wind-in-his-back-in-three-minutes-and-drove-the-same-way-back-against-the-wind-in-four-minutes-if-we-assume-that-the-cyclist-always-puts-constant-force-on-th/ https://www.wikitechy.com/interview-questions/time-and-distance/a-cyclist-drove-one-kilometre-with-the-wind-in-his-back-in-three-minutes-and-drove-the-same-way-back-against-the-wind-in-four-minutes-if-we-assume-that-the-cyclist-always-puts-constant-force-on-th/#respond Tue, 17 Aug 2021 21:34:46 +0000 https://www.wikitechy.com/interview-questions/?p=1967

A cyclist drove one kilometre, with the wind in his back, in three minutes and drove the same way back, against the wind in four minutes. If we assume that the cyclist always puts constant force on the pedals, how much time would it take him to drive one kilometre without wind ?

A. 7/3 min

B. 24/7 min

C. 17/7 min

D. 43/12 min

Answer : B. 24/7 min

Explanation :

  • Let the speed of the cyclist be ‘x’ km/h and wind be ‘y’ km/h.
    1 / (x + y) = 3/60
    ⇒ x + y = 20 ——–> (i)
    And, 1 / (x − y) = 4/60
    ⇒ x − y = 15 ——–> (ii)
  • On solving both the equations we get:
    x = 35/2
    y = 5/2
  • Now, time taken by cyclist without wind:
    = 2/35 × 60
    = 24/7 min
]]> https://www.wikitechy.com/interview-questions/time-and-distance/a-cyclist-drove-one-kilometre-with-the-wind-in-his-back-in-three-minutes-and-drove-the-same-way-back-against-the-wind-in-four-minutes-if-we-assume-that-the-cyclist-always-puts-constant-force-on-th/feed/ 0 A car travels first half distance between two places with a speed of 40 km/hr and rest of the half distance with a speed of 60 km/hr. The average speed of the car is ? https://www.wikitechy.com/interview-questions/time-and-distance/a-car-travels-first-half-distance-between-two-places-with-a-speed-of-40-km-hr-and-rest-of-the-half-distance-with-a-speed-of-60-km-hr-the-average-speed-of-the-car-is/ https://www.wikitechy.com/interview-questions/time-and-distance/a-car-travels-first-half-distance-between-two-places-with-a-speed-of-40-km-hr-and-rest-of-the-half-distance-with-a-speed-of-60-km-hr-the-average-speed-of-the-car-is/#respond Tue, 17 Aug 2021 21:33:17 +0000 https://www.wikitechy.com/interview-questions/?p=1966

A car travels first half distance between two places with a speed of 40 km/hr and rest of the half distance with a speed of 60 km/hr. The average speed of the car is ?

A. 48 km/hr

B. 37 km/hr

C. 44 km/hr

D. 45 km/hr

Answer : A. 48 km/hr

Explanation :

Let the total distance covered be S km.
Total time taken= S / (2 × 40) + S / (2 × 60)
= 5S / 240 hr
Average speed = S × ( 240/ 5S )
= 48 km/hr

]]> https://www.wikitechy.com/interview-questions/time-and-distance/a-car-travels-first-half-distance-between-two-places-with-a-speed-of-40-km-hr-and-rest-of-the-half-distance-with-a-speed-of-60-km-hr-the-average-speed-of-the-car-is/feed/ 0 A man can row 4.5 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of the stream ? https://www.wikitechy.com/interview-questions/time-and-distance/a-man-can-row-4-5-km-hr-in-still-water-and-he-finds-that-it-takes-him-twice-as-long-to-row-up-as-to-row-down-the-river-find-the-rate-of-the-stream/ https://www.wikitechy.com/interview-questions/time-and-distance/a-man-can-row-4-5-km-hr-in-still-water-and-he-finds-that-it-takes-him-twice-as-long-to-row-up-as-to-row-down-the-river-find-the-rate-of-the-stream/#respond Tue, 17 Aug 2021 21:27:35 +0000 https://www.wikitechy.com/interview-questions/?p=1965

A man can row 4.5 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of the stream ?

A. 2 km/hr

B. 2.5 km/hr

C. 1.5 km/hr

D. 1.75 km/hr

Answer : C. 1.5 km/hrs

Explanation :

Let the speed of the current be x km/hr.
Upward speed = (4.5 + x) km/hr
Downward speed = (4.5 − x) km/hr.
Let distance travelled be y, then
y / (4.5 − x) = 2y / (4.5 + x)
x = 1.5 km/hr

]]> https://www.wikitechy.com/interview-questions/time-and-distance/a-man-can-row-4-5-km-hr-in-still-water-and-he-finds-that-it-takes-him-twice-as-long-to-row-up-as-to-row-down-the-river-find-the-rate-of-the-stream/feed/ 0 Consider the following quotients : 1) 368.39 divided by 17 2) 170.50 divided by 62 3) 875.65 divided by 83 Their correct sequence in decreasing order is : https://www.wikitechy.com/interview-questions/numbers/consider-the-following-quotients-1-368-39-divided-by-17-2-170-50-divided-by-62-3-875-65-divided-by-83-their-correct-sequence-in-decreasing-order-is/ https://www.wikitechy.com/interview-questions/numbers/consider-the-following-quotients-1-368-39-divided-by-17-2-170-50-divided-by-62-3-875-65-divided-by-83-their-correct-sequence-in-decreasing-order-is/#respond Tue, 17 Aug 2021 19:34:22 +0000 https://www.wikitechy.com/interview-questions/?p=1899

Consider the following quotients :
1) 368.39 divided by 17
2) 170.50 divided by 62
3) 875.65 divided by 83
Their correct sequence in decreasing order is :

A. 1, 3, 2

B. 2, 1, 3

C. 2, 3, 1

D. 3, 1, 2

Answer : A. 1, 3, 2

Explanation :

  • 36839/17 = 2167, Dividend contains 2 places of decimal.
    So, 368.39 / 17 = 21.67
  • 17050/62 = 275, Dividend contains 2 places of decimal.
    So, 70.50/62 = 2.75
  • 87565/83 = 1055, Dividend contains 2 places of decimal.
    So, 875.65/83 = 10.55

Since 21.67 > 10.55 > 2.75. The desired order is 1, 3, 2.

]]> https://www.wikitechy.com/interview-questions/numbers/consider-the-following-quotients-1-368-39-divided-by-17-2-170-50-divided-by-62-3-875-65-divided-by-83-their-correct-sequence-in-decreasing-order-is/feed/ 0 By what number should be 86700 divided to make it a perfect square ? https://www.wikitechy.com/interview-questions/numbers/by-what-number-should-be-86700-divided-to-make-it-a-perfect-square/ https://www.wikitechy.com/interview-questions/numbers/by-what-number-should-be-86700-divided-to-make-it-a-perfect-square/#respond Tue, 17 Aug 2021 19:32:58 +0000 https://www.wikitechy.com/interview-questions/?p=1898

By what number should be 86700 divided to make it a perfect square ?

A. 3

B. 2

C. 5

D. 4

Answer : A. 3

Explanation :

Divide 86700 by 3 = 28900
The square root of 28900 = √28900
= 170 is the perfect square

]]> https://www.wikitechy.com/interview-questions/numbers/by-what-number-should-be-86700-divided-to-make-it-a-perfect-square/feed/ 0 What number is to be subtracted from 0.006898 to make it a perfect square ? https://www.wikitechy.com/interview-questions/numbers/what-number-is-to-be-subtracted-from-0-006898-to-make-it-a-perfect-square/ https://www.wikitechy.com/interview-questions/numbers/what-number-is-to-be-subtracted-from-0-006898-to-make-it-a-perfect-square/#respond Tue, 17 Aug 2021 19:30:56 +0000 https://www.wikitechy.com/interview-questions/?p=1897

What number is to be subtracted from 0.006898 to make it a perfect square ?

A. 0.000008

B. 0.000007

C. 0.000009

D. 0.000006

Answer : C. 0.000009

Explanation:

Subtract 0.000009 from 0.006898
= 0.006898 – 0.000009
= 0.006889
Square root of 0.006889 = 0.083
= 0.083 is a perfect square

]]> https://www.wikitechy.com/interview-questions/numbers/what-number-is-to-be-subtracted-from-0-006898-to-make-it-a-perfect-square/feed/ 0 When 0.36 is written in the simplest fractional form, the sum of the numerator and the denominator is ? https://www.wikitechy.com/interview-questions/decimal-fraction/when-0-36-is-written-in-the-simplest-fractional-form-the-sum-of-the-numerator-and-the-denominator-is/ https://www.wikitechy.com/interview-questions/decimal-fraction/when-0-36-is-written-in-the-simplest-fractional-form-the-sum-of-the-numerator-and-the-denominator-is/#respond Tue, 17 Aug 2021 11:50:13 +0000 https://www.wikitechy.com/interview-questions/?p=1771

When 0.36 is written in the simplest fractional form, the sum of the numerator and the denominator is ?

A. 15

B. 34

C. 114

D. 115

Answer : B. 34

Explanation:

0.36 = 36/100 = 9/25.
Sum of the numerator and denominator is 9 + 25 = 34

]]> https://www.wikitechy.com/interview-questions/decimal-fraction/when-0-36-is-written-in-the-simplest-fractional-form-the-sum-of-the-numerator-and-the-denominator-is/feed/ 0 What decimal of an hour is a second ? https://www.wikitechy.com/interview-questions/decimal-fraction/what-decimal-of-an-hour-is-a-second/ https://www.wikitechy.com/interview-questions/decimal-fraction/what-decimal-of-an-hour-is-a-second/#respond Tue, 17 Aug 2021 11:45:17 +0000 https://www.wikitechy.com/interview-questions/?p=1770

What decimal of an hour is a second ?

A. 0.0025

B. 0.0256

C. 0.0027

D. 0.000126

Answer : C. 0.0027

Explanation:

1 / (60 * 60)
= 1 / 3600
= .0027

]]> https://www.wikitechy.com/interview-questions/decimal-fraction/what-decimal-of-an-hour-is-a-second/feed/ 0 What will come in place of question mark in the following equation ? 54.(?)3 + 543 + 5.43 = 603.26 ? https://www.wikitechy.com/interview-questions/decimal-fraction/what-will-come-in-place-of-question-mark-in-the-following-equation-54-3-543-5-43-603-26/ https://www.wikitechy.com/interview-questions/decimal-fraction/what-will-come-in-place-of-question-mark-in-the-following-equation-54-3-543-5-43-603-26/#respond Tue, 17 Aug 2021 11:43:37 +0000 https://www.wikitechy.com/interview-questions/?p=1769

What will come in place of question mark in the following equation ?
54.(?)3 + 543 + 5.43 = 603.26 ?

A. 5

B. 6

C. 8

D. None of these

Answer : C. 8

Explanation:

Let, x + 543 + 5.43 = 603.26
x = 603.25 – (543 + 5.43)
= 603.26 – 548.43
= 54.83
So missing digit is 8.

]]> https://www.wikitechy.com/interview-questions/decimal-fraction/what-will-come-in-place-of-question-mark-in-the-following-equation-54-3-543-5-43-603-26/feed/ 0 Which is the Closest approximation to the product 0.3333 x 0.25 x 0.499 x 0.125 x 24 ? https://www.wikitechy.com/interview-questions/decimal-fraction/which-is-the-closest-approximation-to-the-product-0-3333-x-0-25-x-0-499-x-0-125-x-24/ https://www.wikitechy.com/interview-questions/decimal-fraction/which-is-the-closest-approximation-to-the-product-0-3333-x-0-25-x-0-499-x-0-125-x-24/#respond Tue, 17 Aug 2021 11:41:52 +0000 https://www.wikitechy.com/interview-questions/?p=1768

Which is the Closest approximation to the product 0.3333 x 0.25 x 0.499 x 0.125 x 24 ?

A . 1/8

B . 3/4

C . 3/8

D . 2/5

Answer : A . 1/8

Explanation :

Given product = 0.3 x 0.25 x 0.5 x 0.125 x 24
= (3/10 × 25/100 × 5/10 × 125/1000 × 24)
= 9/80
= 1/8 (Approximate)

]]> https://www.wikitechy.com/interview-questions/decimal-fraction/which-is-the-closest-approximation-to-the-product-0-3333-x-0-25-x-0-499-x-0-125-x-24/feed/ 0 A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out of this cloth ? https://www.wikitechy.com/interview-questions/decimal-fraction/a-tailor-has-37-5-metres-of-cloth-and-he-has-to-make-8-pieces-out-of-a-metre-of-cloth-how-many-pieces-can-he-make-out-of-this-cloth/ https://www.wikitechy.com/interview-questions/decimal-fraction/a-tailor-has-37-5-metres-of-cloth-and-he-has-to-make-8-pieces-out-of-a-metre-of-cloth-how-many-pieces-can-he-make-out-of-this-cloth/#respond Tue, 17 Aug 2021 11:39:59 +0000 https://www.wikitechy.com/interview-questions/?p=1767

A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out of this cloth ?

A. 320

B. 360

C. 400

D. None of these

Answer : D. None of these

Explanation:

The tailor has to make 8 piece from 1 metre.
Length of each piece = (1/8) m
= 0.125 m
Required no of pieces = (37.5/0.125)
= (375 * 100) / 125
= 300.

]]> https://www.wikitechy.com/interview-questions/decimal-fraction/a-tailor-has-37-5-metres-of-cloth-and-he-has-to-make-8-pieces-out-of-a-metre-of-cloth-how-many-pieces-can-he-make-out-of-this-cloth/feed/ 0 Convert 0.0155 into fractions ? https://www.wikitechy.com/interview-questions/decimal-fraction/convert-0-0155-into-fractions/ https://www.wikitechy.com/interview-questions/decimal-fraction/convert-0-0155-into-fractions/#respond Tue, 17 Aug 2021 11:33:57 +0000 https://www.wikitechy.com/interview-questions/?p=1766

Convert 0.0155 into fractions ?

A. 21/2900

B. 17/2700

C. 23/3500

D. 31/2000

Answer : D. 31/2000

Explanation :

Given :
The decimal number = 0.0155
Write it as a fraction = 0.0155 / 1
Multiply 10000 to both numerator & denominator
(0.0155 x 10000)/(1 x 10000) = 155/10000

It can be written as 1.55% = 1.55/100 or 155/10000
To simplify 155/10000 to its lowest terms, find LCM (Least Common Multiple) for 155 & 10000.
5 is the LCM for 155 & 10000

Divide numerator & denominator by 5
155/10000 = (155 / 5) / (10000 / 5)
= 31/2000
31/2000 is a simplest fraction for the decimal point number 0.0155

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