A and B can complete a piece of work in 12 and 18 days respectively.…

Question

A and B can complete a piece of work in 12 and 18 days respectively. A begins to do the work and they work alternatively one at a time for one day each. The whole work will be completed in ?

Accepted Answer

Option A. 141/3 days. Answer & Solution Answer: Option A Solution: & ( A + B ) 's 2 days work & = ( 112 + 118 ) & = 536 & Work done in 7 pairs of days & = ( 536 × 7 ) & = 3536 & Remaining work & = ( 1 - 3536 ) & = 136 & On 15th day, it is A's turn . & 112 work is done by A in 1 day . & 136 work is do…