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Q:

# X and Y together can finish a piece of work in 15 days, while Y alone can finish it in 40 days. X alone can finish the work in:

 A) 24 days B) 26 days C) 25 days D) 23 days

Answer:   A) 24 days

Explanation:
Q:

If 27 people, working 8 hours a day, can complete a task in 12 days, then in how many days will 18 people finish the task, working 9 hours a day?

 A) 15 days B) 20 days C) 16 days D) 18 days

Answer & Explanation Answer: C) 16 days

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Q:

Ramu works 4 times as fast as Somu. If Somu can complete a work in 20 days independently, then the number of days in which Ramu and Somu together can complete the work is:

 A) 4 days B) 5 days C) 3 days D) 6 days

Answer & Explanation Answer: A) 4 days

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2 243
Q:

How many men will be required to plough 50 acres of land in 10 days if 15 men required 6 days to plough 10 acres of land?

 A) 50 B) 40 C) 55 D) 45

Answer & Explanation Answer: D) 45

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2 271
Q:

Raju can finish a piece of work in 20 days. He worked at it for 5 days and then Jakob alone finished the remaining work in 15 days. In how many days can both finish it together?

 A) 20 days B) 12 days C) 10 days D) 16 days

Answer & Explanation Answer: C) 10 days

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2 296
Q:

A alone can complete a task in 3 days and B alone can complete the same task in 6 days. In how many days can A and B complete it together?

 A) 3 B) 6 C) 1 D) 2

Answer & Explanation Answer: D) 2

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Q:

The ratio of the efficiencies of A, B and C is 7: 5 : 8. Working together, they can complete a piece of work in 42 days. B and C worked together for 21 days and the remaining work was completed by A alone. The whole work was completed in:

 A) 102 days B) 93 days C) 99 days D) 96 days

Answer & Explanation Answer: A) 102 days

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3 311
Q:

A is 20% less than B and C is 30% more than D. If D is 25% less than A, then which of the following is true?

 A) C=0.78B B) B=0.39C C) B=0.78C D) C=0.39B

Answer & Explanation Answer: A) C=0.78B

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1 248
Q:

A contractor planned to finish a work in 12 days and employed a certain number of men. However, 6 of them remained absent from the very first day. The rest could finish the work in 20 days. The number of men originally employed were

 A) 15 B) 18 C) 20 D) 24

Answer & Explanation Answer: A) 15

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