defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Quantitative Aptitude Time and Work Work Efficiency
A, B and C can complete a piece of work separately in 10, 20 and 40 days, respectively. In how many days will the work be completed if A is assisted by both B and C every third day?
1
\(8 \frac{2}{7}\)
2
9
3
\(10 \frac{2}{3}\)
4
6