1.

A,B and C can complete a work in 10, 12 and 15 days respectively. A left the work 5 days before the work was completed and B left 2 days after A had left. Number of days required to complete the whole work was:

A. 7
B. 8(2/
C. 3)6
D. 6(2/3)
Answer» B. 8(2/


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