A can complete 9/10 part of a work in 31 days. After that, with the help of B he can complete the remaining work in 4 days. In how many days willÂ A and B together can complete that work ?

A can complete 9/10 part of a work in 31 days. After that, with the he

1.	A can complete 9/10 part of a work in 31 days. After that, with the help of B he can complete the remaining work in 4 days. In how many days willÂ A and B together can complete that work ?
A.	36
B.	40
C.	42
D.	38
Answer» C. 42

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A can complete 9/10 part of a work in 31 days. After that, with the help of B he can complete the remaining work in 4 days. In how many days willÂ A and B together can complete that work ?

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