A and B take 15 and 20 days respectively. They worked for 4 days, and – McqOptions

MCQOPTIONS

1.	A and B take 15 and 20 days respectively. They worked for 4 days, and then the fraction of work left was
A.	8/15
B.	6/15
C.	11/15
D.	7/15
Answer» B. 6/15

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