31
A can do a work in 9 days, if B is 50 % more efficient than A, then in how many days can B do the same work ?
- A13.5 days
- B4.5 days
- C6 days
- D3 days
Answer not set
Log in or create a free account to reply and vote.
0
CCommunity
Hello, 6 days is correct
0
CCommunity
Let total work to be done=1
Then, A's one day work= (total work) / (total days taken by A)
(=1/9)B's one day work= 150% of A's one day work (because B is 50% more efficient)
=(1/9)*(150/100)
=1/6 Total time taken by B to do total work = 6 days
Then, A's one day work= (total work) / (total days taken by A)
(=1/9)B's one day work= 150% of A's one day work (because B is 50% more efficient)
=(1/9)*(150/100)
=1/6 Total time taken by B to do total work = 6 days