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Friday, November 30, 2018

A and B together can complete a work in 3 days.

A and B together can complete a work in 3 days. They start together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in
A5 days
B6 days
C9 days
D10 days

Answer is : 6 days

Explanation:

(A+B)'s one day's work =13 part
(A+B) works 2 days together =23 part;
Remaining work =12313part;
1/3 part of work is completed by A in two days;
Hence, one day's work of A = 16;
Then, one day's work of B=131616;
So, B alone can complete the whole work in 6 days.

Nithin K
answered Apr 7 '2018 at 19:44

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