A and B can do a piece of work in 20 days and B in 15 days. They work together for
days and then A goes away. In how many days will B finish the remaining work?
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Step-by-step explanation:
work done by a nd b in 1 day = 1/20
work done by b in 1 day=1/15
if they work together for 1 day, they will do 1/20 work
when A leaves,
work remaining= 19/20
so of days in which B will finish
=19/20÷1/15
=57/4=14days
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