BANK IBPS RRB Clerk 2025 Mock Test Series (Pre + Mains) Quantitative Aptitude Time and Work Work Efficiency
A can do one-third of a work in 12 days and B can do half the same work in 9 days. Working together, in how many days they can do nine-fourth of the work?
1
30 days
2
12 days
3
18 days
4
27 days
5
36 days