a can do a piece of work in 20 days and B in 15 days they worked together for two days and then.a goes away in how many days will b finish remaining work
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Answer:
A's 1 work in one day = 1/20
B's 1 day work = 1/15
(AB)'s 1 day work = 1/20+1/15 = 7/60
(AB)'s 1 day work = 7/60*2=7/30
remaining work can be finished in 18 days so,
18-7/30
=533/30
no of days B will take is
remaining work /A's one day work
= 533/30/1/20
=533/30*20/1
=1066/3
=355.3
hope its correct
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