state gov WBPSC Miscellaneous Services Mock Test 2023 Quantitative Aptitude Time and Work Work Efficiency
A alone can paint a house in 35 days and B alone can do it in 70 days. Along with C, they did the job in 10 days only. In how many days C alone can do the job?
1
40 days
2
70/3 days
3
70/4 days
4
20 days