Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency
A contractor undertakes to do piece of work in 40 days. He engages 20 workers at the beginning and after 30 days only half of the work was done. How many additional men may be employed so that the work may be completed in time ?
1
50
2
55
3
40
4
45