A and B can finish a work in 20 days B alone can do in 15 days They wo – InterviewSolution

1.	A and B can finish a work in 20 days B alone can do in 15 days They work together for 2 days and then A goes away in how many will B finish the remaining work
Answer» A and B do a work in 20 daysIn other WORDS, the fraction of work DONE by A and B in 1 day is 1/20Similarly Fraction of work done by B in 1 day is 1/15Now A and B work together for 2 days and completed 2/ 20 or 1/10 of work.Work left is 1- 1/10 =9/10 which B has to do1/15 of work is done by B in 1 daySo 9/10 of it is completed by B in9*15/10135/10=13.5days

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