Asked by Anonymous

A and B can finish a piece of work in 16 days and 12 days respectively. A started the work and worked at it for 2 days.He was then joined by B.Find the total time taken to finish the work.
Answered by Damon
A work/day = 1/16
B work/day = 1/12

2(1/16) + x(1/16 +1/12) = 1

Answered by bhupy
8 days
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