A can do a work in 15 days and B in 20 days. If they work on it togeth – McqOptions

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1.	A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of work that is left is:
A.	\[1/4\]
B.	44470
C.	42186
D.	42217
Answer» E.

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