state gov BSPHCL Correspondence Clerk & Store Assistant Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency
A and B can do a piece of work in 25 days. B and C can do the same work in 20 days while C and A can do the same work in 10 days. In how many days they together can do the work?
1
19/200 days
2
13/200 days
3
200/21 days
4
200/19 days