Teaching Railway Teacher TGT 2025 Mock Test Series Quantitative Aptitude Time and Work Work Efficiency
A can complete a piece of work in 20 days and B can complete the same work in 10 days. With the help of C, working together they completed the work in 5 days. The number of days in which C alone can complete the work is:
1
25
2
10
3
15
4
20