engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) Quantitative Aptitude Time and Work Work Efficiency
A and B can do a piece of work in 12 days. B and C can do the same work in 20 days and C and A in 15 days. If A, B, and C work together, they will complete the work in?
1
8 days
2
6 days
3
9 days
4
10 days