Time And Work MCQ

A can do a piece of work in 80days. He works at it for 10 days and then B alone finishes the remaining work in 42 days. the two together could complete the work in how many days?

Answer

Correct Answer: 30

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A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

Answer

Correct Answer: 22.5 days

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A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work?

Answer

Correct Answer: 6 days

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A can do work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is?

Answer

Correct Answer: 8/15

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A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C?

Answer

Correct Answer: Rs. 400

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A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in

Answer

Correct Answer: 15 days

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Worker A takes 8 hours to do a job. Worker B takes 10 hours to do the same

Answer

Correct Answer: 40/9

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A can do a piece of work in 15 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. A alone can finish the remaining work in

Answer

Correct Answer: 7.5 days

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A is twice as good as workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work.

Answer

Correct Answer: 54 days

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If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:

Answer

Correct Answer: 4 days

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A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

Answer

Correct Answer: 8/15

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A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

Answer

Correct Answer: 15 days

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A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in?

Answer

Correct Answer: 48/5

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A and B can together complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work?

Answer

Correct Answer: 6 days

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If 34 men completed 2/5th of a work in 8 days working 9 hours a day. How many more man should be engaged to finish the rest of the work in 6 days working 9 hours a day?

Answer

Correct Answer: 102

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