A can do a piece of work in 20 days b can do it in 40 days. If they work on it for 5 dys.Then fraction of ork left?
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1/20 work is done by A in one day
1/40 work is done by B in one day
then, total work done by both in one day = 1/20+1/40=3/40
so, if they work for 5 days then 3/40×5=3/8
hence, 3/8 work is left.
PLEASE MARK IT AS BRAINLIEST
1/40 work is done by B in one day
then, total work done by both in one day = 1/20+1/40=3/40
so, if they work for 5 days then 3/40×5=3/8
hence, 3/8 work is left.
PLEASE MARK IT AS BRAINLIEST
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