A man can do a piece o work in 5 days, but with the help of his son, he can do it in 3 days. In what time can the son do it alone?
A) 6(1/2) days B) 7 days C) 7(1/2) days D) 8 days
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Answered by
0
Answer:
b
Step-by-step explanation:
Answered by
2
Step-by-step explanation:
A man can do a piece of work in 5 days.
Man's 1 day work= 1/5 part
Their can do work together in = 3 days
their together 1 day work= 1/3 part
son 1 day work= 1/3-1/5
= 2/15 part
son can do the remaing work in 15/2= 7(1/2) days
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