engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Quantitative Aptitude Time and Work Work Efficiency
Amar Jeet Singh can complete a piece of work in 5 days. With the help of his son he can complete it in 3 days. In how many days can the son independently complete the work?
1
\(5\frac{1}{2}\)
2
\(7\frac{1}{2}\)
3
\(6\frac{1}{2}\)
4
\(4\frac{1}{2}\)