A and B together can complete a work in 20 days. If A alone can do a piece of work in 24 days.Then B alone can complete a work in?
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Answer:
120 days
Step-by-step explanation:
a+b make a work in 20 days.
as per question
a can do that work in 24 days.
we count that work '1' as whole
then we can write
in 24 days a complete 1 work
in 1 day a complete 1/24 work
in 20 days a complete 20/24 work
it means b complete 4/24 work in 20 days
so..b can complete the work in 120 days....
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