A can do a piece of work in 40 days. He works at it for 8 days and b comes and complete ot in 24 days
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Answer:
A's 1 day work = 1 unit
A' 8 days work is 8×1=8 units
Work left =40−8=32 work
left32−→−−−−−2 units/day24 days(B)
B's one day work = 4/3units
A's one day work = 1 unit
(A+B) complete the whole work together in =40/1+4/3
40*3/7=120/7
120/7 is the answer
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