other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Time and Work Work Efficiency
A alone can complete a work in 10 days, B alone can complete the same work in 20 days and C alone can complete the same work in 15 days. A and C work together for some time and left, If B worked for 10 days to complete the work, then A and C worked for how many days?
1
1 days
2
3 days
3
6 days
4
12 days