state gov Bihar SSC (BSSC) Inter Level Mock Test 2024 - 25 Quantitative Aptitude Time and Work Work Efficiency
A builds a wall in 2 hours and B breaks the same wall due to which A takes 4 hours to complete/ build the wall. In what time, B break the full wall.
1
4 hours
2
2 hours
3
6 hours
4
8 hours