a certain sum amounts to rs. 7000 in 2 years and to rs. 8000 in 3 years. find the sum. - Wikitechy https://www.wikitechy.com/interview-questions/tag/a-certain-sum-amounts-to-rs-7000-in-2-years-and-to-rs-8000-in-3-years-find-the-sum/ Interview Questions Tue, 07 Sep 2021 06:15:18 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png a certain sum amounts to rs. 7000 in 2 years and to rs. 8000 in 3 years. find the sum. - Wikitechy https://www.wikitechy.com/interview-questions/tag/a-certain-sum-amounts-to-rs-7000-in-2-years-and-to-rs-8000-in-3-years-find-the-sum/ 32 32 A certain sum of money amounts to Rs.1300 in 2 years and to Rs. 1525 in 3.5 years. Find the sum and the rate of interest ? https://www.wikitechy.com/interview-questions/simple-interest/a-certain-sum-of-money-amounts-to-rs-1300-in-2-years-and-to-rs-1525-in-3-5-years-find-the-sum-and-the-rate-of-interest/ https://www.wikitechy.com/interview-questions/simple-interest/a-certain-sum-of-money-amounts-to-rs-1300-in-2-years-and-to-rs-1525-in-3-5-years-find-the-sum-and-the-rate-of-interest/#respond Wed, 18 Aug 2021 02:26:10 +0000 https://www.wikitechy.com/interview-questions/?p=2062

A certain sum of money amounts to Rs.1300 in 2 years and to Rs. 1525 in 3.5 years. Find the sum and the rate of interest ?

A. Rs 850 , 10%

B. Rs 900, 12%

C. Rs 800, 13%

D. Rs 1000,15%

Answer : D. Rs 1000, 15%…

Explanation :

1525 – 1300 = 225 for 1.5 yrs (3.5 – 2)
So for one yr 225 / 1.5 = 150
then for 2 yrs interest is 150 + 150 = 300
Then principal 1300 – 300 = 1000.
Now 150 / 1000 * 100 = 15%

]]> https://www.wikitechy.com/interview-questions/simple-interest/a-certain-sum-of-money-amounts-to-rs-1300-in-2-years-and-to-rs-1525-in-3-5-years-find-the-sum-and-the-rate-of-interest/feed/ 0 Rs.5887 is divided between Shyam and Ram, such that Shyam’s share at the end of 9 years is equal to Ram’s share at the end of 11 years, compounded annually at the rate of 5%. Find the share of Shyam ? https://www.wikitechy.com/interview-questions/compound-interest/rs-5887-is-divided-between-shyam-and-ram-such-that-shyams-share-at-the-end-of-9-years-is-equal-to-rams-share-at-the-end-of-11-years-compounded-annually-at-the-rate-of-5-find-the-s/ https://www.wikitechy.com/interview-questions/compound-interest/rs-5887-is-divided-between-shyam-and-ram-such-that-shyams-share-at-the-end-of-9-years-is-equal-to-rams-share-at-the-end-of-11-years-compounded-annually-at-the-rate-of-5-find-the-s/#respond Tue, 17 Aug 2021 14:57:11 +0000 https://www.wikitechy.com/interview-questions/?p=1787

Rs.5887 is divided between Shyam and Ram, such that Shyam’s share at the end of 9 years is equal to Ram’s share at the end of 11 years, compounded annually at the rate of 5%. Find the share of Shyam ?

A. 2088

B. 2000

C. 3087

D. None of these

Answer : C. 3087…

Explanation :

Shyam’s share * (1 + 0.05)9 = Ram’s share * (1 + 0.05)11
Shyam’s share / Ram’s share = (1 + 0.05)11 / (1 + 0.05)9
= (1 + 0.05)2
= 441/400
Therefore Shyam’s share = (441/841) * 5887
= 3087 .

]]> https://www.wikitechy.com/interview-questions/compound-interest/rs-5887-is-divided-between-shyam-and-ram-such-that-shyams-share-at-the-end-of-9-years-is-equal-to-rams-share-at-the-end-of-11-years-compounded-annually-at-the-rate-of-5-find-the-s/feed/ 0 A certain sum amounts to Rs. 7000 in 2 years and to Rs. 8000 in 3 years. Find the sum ? https://www.wikitechy.com/interview-questions/compound-interest/a-certain-sum-amounts-to-rs-7000-in-2-years-and-to-rs-8000-in-3-years-find-the-sum/ https://www.wikitechy.com/interview-questions/compound-interest/a-certain-sum-amounts-to-rs-7000-in-2-years-and-to-rs-8000-in-3-years-find-the-sum/#respond Tue, 17 Aug 2021 14:54:50 +0000 https://www.wikitechy.com/interview-questions/?p=1786

A certain sum amounts to Rs. 7000 in 2 years and to Rs. 8000 in 3 years. Find the sum ?

A. Rs 6959.37

B. Rs 6459.37

C. Rs 5359.37

D. Rs 5759.37

Answer : C. Rs 5359.37…

Explanation :

Amount = Rs. 7000, Time = 2 years
Amount = Rs. 8000, Time = 3 years
To calculate sum, we must first calculate rate of interest.
Simple interest = PRN / 100

S.I. on Rs. 7000 for 1 year = Rs. (8000 – 7000) = Rs. 1000
1000 = 7000 × R × 1 / 100
R = 11 23/7%
Let sum be Rs. X
7000 = P [ 1 + ( 100 / 7 × 100 ) ]2
8 / 7 × 8 / 7 × P = 7000
P = 5359.37

]]> https://www.wikitechy.com/interview-questions/compound-interest/a-certain-sum-amounts-to-rs-7000-in-2-years-and-to-rs-8000-in-3-years-find-the-sum/feed/ 0 Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time ? https://www.wikitechy.com/interview-questions/compound-interest/rs-8000-become-rs-9261-in-a-certain-interval-of-time-at-the-rate-of-5-per-annum-of-c-i-find-the-time/ https://www.wikitechy.com/interview-questions/compound-interest/rs-8000-become-rs-9261-in-a-certain-interval-of-time-at-the-rate-of-5-per-annum-of-c-i-find-the-time/#respond Tue, 17 Aug 2021 14:34:24 +0000 https://www.wikitechy.com/interview-questions/?p=1781

Rs.8000 become Rs.9261 in a certain interval of time at the rate of 5% per annum of C.I. Find the time ?

A. 4 years

B. 6 years

C. 2 years

D. 3 years

Answer : D. 3 years…

Explanation :

Amount = 9261 p = 8000
rate = 5%
A = p [ 1 + r / 100]n
9261 = 8000[1 + 5/100]n
=> 9261 / 8000 = [21 / 20]n
=> [21 / 20]3=[21 / 20]n
on comparing n = 3 so it will take 3years

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