A can do a piece of work in 20 days. B in 15 days A and C in 12 days. In how many days can A finish the work if he is assisted by B on one day and C on the next, alternately?

A. 10

B. 8

C. 6

D. 4

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Two men and three women working 7 hours a day finish a work in 5 days. Four men and four women working 3 hours a day complete the work in 7 days. The number of days in which only 7 men working 4 hours a day will finish the work is?

A. 5 days

B. 6 days

C. 7 days

D. 10 days

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A and B can do a piece of work in 8 days. B and C can do it in 12 days and A and C in 16 days. Working together they will complete the work in how many days?

A. 14.76 days

B. 12.2 days

C. 9.48 days

D. 7.38 days

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A is half good a work man as B and together they finish a job in 14 days. In how many days working alone B finish the job?

A. 20

B. 21

C. 22

D. 23

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45 men working 8 hours per day dig 30 m deep. How many extra men should be put to dig to a depth of 50 m working 6 hours per day?

A. 25

B. 30

C. 45

D. 55

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5 men are equal to as many women as are equal to 8 boys. All of them earn Rs.90 only. Menâ€™s wages are?

A. Rs.6

B. Rs.5

C. Rs.4.50

D. Rs.5.50

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16 men can complete a piece of work in 25 days. In how many days can 20 men complete that piece of work?

A. 16 days

B. 18 days

C. 20 days

D. 22 days

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Ramesh can finish a work in 20 days and Sushil in 25 days. They both work together for 5 days and then Sushil goes away. In how many days will Ramesh complete the remaining work?

A. 8 days

B. 9 days

C. 10 days

D. 11 days

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A can finish a piece of work in 5 days. B can do it in 10 days. They work together for two days and then A goes away. In how many days will B finish the work?

A. 4 days

B. 5 days

C. 6 days

D. 8 days

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A and B can finish a work in 16 days while A alone can do the same work in 24 days. In how many days B alone will complete the work?

A. 56

B. 48

C. 36

D. 58

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