A is 40% more efficient than B. If B alone can complete a work in 42 days, then A alone can complete the same work in how many days?

A is 40% more efficient than B. If B alone can complete a work in 42 d

1.	A is 40% more efficient than B. If B alone can complete a work in 42 days, then A alone can complete the same work in how many days?
A.	36
B.	40
C.	30
D.	32
Answer» D. 32

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A is 40% more efficient than B. If B alone can complete a work in 42 days, then A alone can complete the same work in how many days?

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