A) 6-5 days
B) 7 days
C) 7-5 days
D) 8 days
Correct Answer: C
Solution :
One day work of the man \[=\frac{1}{5}\,\,part\] One day work of the man and his son \[=\frac{1}{3}\,\,part\] Son's can do in one day \[=\frac{1}{3}-\frac{1}{5}=\frac{2}{15}\] Hence, the son will do in 7-5 days.You need to login to perform this action.
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