A can do in one day three times the work done by B in one day. They to – McqOptions

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1.	A can do in one day three times the work done by B in one day. They together finish2/5 of the work in 9 days. The number of days by which B can do the work alone is:
A.	120 days
B.	100 days
C.	30 days
D.	90days
Answer» E.

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