state gov TNPSC Group 4 (தமிழ்நாடு குழு IV) Mock Test 2025 Quantitative Aptitude Time and Work Work Efficiency
A can complete a piece of work in 20 days and B can complete 20% of the work in 6 days. If they work together in how many days can they finish 50% of the work, if they work together?
1
6
2
12
3
8
4
9