Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Time and Work Work Efficiency
A, B and C together can do a piece of work in 6 days. A alone can do it in 12 days, B alone can do it in 30 days. In how many days can C finish the work?
1
10
2
20
3
35
4
More than one of the above
5
None of the above