A man can do a piece of work in 6 days, but with the help of his son, he can do it in 4 days. In what time can the son do it alone?

Options
- 10 days
- 12 days
- 14 days
- none

CORRECT ANSWER : 12 days

Discussion Board
Solution

1/6+S=1/4
S = 1/4-1/6 = 2/24 = 1/12 = 12 days

Monica 06-28-2020 09:16 AM

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