2) A can do a piece of work in 4 days and isson
so it in 12 days. What is the number of days
I required to do the same work together?
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Part of work A can do in 1 day = 1/4
Part of work A's son can do in 1 day = 1/12
Part of work done by A + A's son in 1 day = 1/4 + ㅤㅤㅤㅤ1/12 = 4/12 = 1/3
Part of work done by A + A's son in 3 days = 3 * ㅤㅤㅤㅤㅤ1/3 = 1 (full work)
Therefore, time taken by A and his son together to complete the work is 3 days.
Ans. = 3 days.
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