BANK CBI Sub Staff (Safai Karmachari) Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency
L is 25% as efficient as M. N does one-third of the work done by L and M together. If N alone does the work in 30 days, then in how many days will L, M and N together completes the work?
1
\(8\frac{1}{2}\) days
2
7 days
3
\(7\frac{1}{2}\) days
4
8 days
5
None of these