A alone can complete a piece of work in 18 days and B alone in 15 day…

Question

A alone can complete a piece of work in 18 days and B alone in 15 days, B alone worked at it for 10 days and then left the work. In how many more days, will A alone complete the remaining work ?

Accepted Answer

Option C. 6 days. Answer & Solution Answer: Option C Solution: & B's\, 10\, day's\, work & = ( 115 × 10 ) = 2/3 & Remaining\, work & = ( 1 - 2/3 ) = 1/3 & Now, 118 work\, is\, done\, by\, A\, in\, 1\, day & 1/3\, work\, is\, done\, by\, A\, in & ( 18 × 1/3 ) = 6\, days