Working together, A, B and C can complete a work in 36 days. If the ef – McqOptions

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1.	Working together, A, B and C can complete a work in 36 days. If the efficiency of A, B and C are in the ratio 5 : 6 : 9, then B alone will complete the same work in:
A.	120 days
B.	100 days
C.	60 days
D.	90 days
Answer» B. 100 days

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