defence exam Indian Coast Guard Assistant Commandant (GD/CPL) 2025 Test Series Quantitative Aptitude Time and Work Work Efficiency
A, B and C can do a piece of work in 10, 15 and 30 days, respectively. If B and C both assist A on every third day, then in how many days will 40% of the work be completed?
1
\(3\frac{1}{2}\)
2
5
3
\(2\frac{1}{2}\)
4
3