engineering recuitment FSSAI Assistant Mock Test 2021 Quantitative Aptitude Time and Work Work Efficiency
A work can be completed by A in 20 days and by B in 30 days. They work together for some time, then B left the work. If A completed the rest of the work in 5 days, then B worked for how many days?
1
8 days
2
7 days
3
9 days
4
10 days