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Month: August 2021

464 Articles

A Certain sum of money is sufficient to pay either George’s wage for 15 days or Mark’s wages for 10 days. For how long will it be sufficient if both George and Mark work together ?

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Answer : B. 6

A alone can do 1/4th of the work in 2 days. B alone can do 2/3rd of the work in 4 days. If all the three work together, they can complete it in 3 days so what part of the work will be completed by C in 2 days ?

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Answer : A. 1/12

Jake can dig a well in 16 days. Paul can dig the same well in 24 days. Jake, Paul and Hari together dig the well in 8 days. Hari alone can dig the well in ?

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Answer : A. 48

Thomas takes 7 days to paint a house completely whereas raj requires 9 days to paint the same house completely. how many days will take to paint the house if both them work together ?

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Answer : C. 4

4 men can check exam papers in 8 days working 5 hours regularly. What is the total hours when 2 men will check the double of the papers in 20 days ?

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Answer : A. 8 hours

A man rows a boat at a speed of 15 mph in still water. Find the speed of the river if it takes her 4 hours 30 minutes to row a boat to a place 30 miles away and return

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Answer : A. 5 mph

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 ?

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Answer : C. 10

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 ?

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Answer : D. 5 km/hr

Ramakant wants to earn Rs. 1500 interest on his deposits. He plans to buy a sack of grains with the interest. He puts Rs. 5,000 into his account that earns 2.5% interest. How long will he need to leave his money in the account to earn this interest that would help him buy the sack of grains ?

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Answer : C . 12 years

Alok deposits Rs.5000 in his bank account for 5 years to earn an interest of 12%. What amount will he get after 5 years ?

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Answer : D . 8000

A Certain sum of money amounts to Rs 2500 in a span of 5 years and further to Rs.3000 in a span of 7 years at simple interest. The sum is ?

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Answer : B. 1250

The simple interest earned on a certain amount is double the amount when invested for 10 years. What is the interest rate being offered ?

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Answer : B. 20%

If the simple interest on a certain sum of money is 4/25 of the sum and the rate percent equals the number years, then the rate of interest per annum is ?

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Answer : A. 4 %...

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 ?

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Answer : D. Rs 1000, 15%...

The probability that a card is drawn from a pack of 52 cards will form a pack of 52 cards will be diamond or king is ?

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Answer : B. 4/13

Four whole number taken at random are multiplied together. The chance that the last digit of the product is 1, 3, 7, or 9 is ?

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Answer : A. 16/625

A brother and sister appear for an interview against two vacant posts in an office. The probability of the brother’s selection is 1/5th and that of the sister’s selections is 1/3rd. What is the probability that one of them is selected ?

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Answer : B. 2/5

A bag contains 8 red and 5 white balls. 2 balls are drawn at random. What is the probability that both are white ?

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Answer : D. 5/39

When two dice are rolled, what is the probability that the sum of the numbers appeared on them is 11 ?

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Answer : B. 1/18

The probability of drawing a red card from a deck of playing cards is ?

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Answer : D. 1/2

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