If 28 men can finish a work in 15 days, 21 men can finish the same work in___________?

Related 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 ?

A. 42/4 days B. 41/4 days C. 55 days D. None of these...

2 men and 12 women can finish a job in 4 days. 4 men and 6 women can do the same job in 5 days. Find the time taken by 1 man and 1 woman to complete the job.

A. 30 days B. 25 days C. 24 days D. 20 days...

P can do a work in the same time in which Q and R together can do it. If P and Q work together, the work can be completed in 10 days. R alone needs 50 days to complete the same work. then Q alone can do it in__________?

A. 30 days B. 25 days C. 20 days D. 15 days...

Jameel can complete a task in 15 hours and Nasir can complete the same task in 12 hours. Jameel starts the task at 9:00 am and stops working at 2:00pm. Nasir starts working on the task at 4:00 pm. At what time is the task completed?

A. 12:00 pm B. 2:00 am C. 12:00 am D. 10:00 pm...

8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ?

A. 6 days B. 8 days C. 10 days D. 12 days...