railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Time and Work Work Efficiency
16 men can finish a work in 12 days. After they worked for 4 days, some more men joined them and they together completed the remaining work in 4 days. How many more men joined in?
1
8
2
16
3
32
4
10