Can do a piece of work in 12 days A is 60\% less efficient than B the number of days it takes a to do the same piece of work is?

A completes one job in 12 days. Hence the fraction of job completed by A in 1 day $=\dfrac{1}{12}$. Since B is 60\% more efficient than A, the fraction of the total job completed on one day by B will be 60\% more than that of A. Hence B finishes the job in 7.5 days.

Can do a piece of work in 4 hours B and C together in 3 hours and A and C together in 2 hours how long will b alone take to do it?

A can do a piece of work in 4 hours, B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it? Hence B alone can do the work in 12 hours, so option [D] is correct answer.

How much time does a do half as much work as B?

A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it Suppose B takes x dáys to do the work. 1. 4 men and 6 women finish a job in 8 days, while 3 men and 7 women finish it in 10 days.

How long will it take A and B to finish the work?

So, A and C will take 6 days to finish the rest of the job. A can do a piece of work in 60 days. He works at it for 10 days and then B alone finishes the remaining work in 40 days. In how much time will A and B, working together, finish the work?

How long does it take a to do a piece of work?

A does half as much work as B in one-third of the time taken by B. If together they take 10 days to complete a work, then the time taken by B alone to do it would have been 2). A can do a piece of work in 9 days.

What is the efficiency of B per day?

A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it? Let there are 18 works. Together they take 18 days so per day they complete 1 work. So their efficiency per day is 1 work. So efficiency of B per day is 18/x works.

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