other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Time and Work Work Efficiency
A and B together can complete a work in 15 days, B and C together can complete the whole work in 12 days and C alone can complete the whole work in 30 days. In how many days A alone can complete the whole work?
1
80 days
2
40 days
3
50 days
4
60 days