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.Management Sciences
Category: Time and Work Mcqs
A and B working separately can do a piece of work in 9 and 12 days respectively. If they work for a day alternately. If A begins first, in how many days the work will be completed ?
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A. 42/4 days
B. 41/4 days
C. 55 days
D. None of these
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 ?
A. 12 days
B. 15 days
C. 16 days
D. 18 days
Efficiency of Rashid and Danish are in the ratio 5:8. If Danish takes 51 days less than Rashid to complete the work, find the time taken by Rashid to complete the work.
A. 85 days
B. 126 days
C. 118 days
D. 136 days
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If X and Y complete a certain work in 10 days, Y and Z in 16 days and X and Z in 22 days, find the time required for each one to complete the work while working separately.
A. 120, 40, 60 days
B. 120, 60, 80 days
C. 40, 30, 120 days
D. 30, 40, 60 days
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B can work 3 times faster than A. They work together on a task and complete it in a day. How long does it take for B alone to complete the task?
A. 32 hours
B. 48 hours
C. 3 days
D. 4 days
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