railway RRB ALP (CBT 1 + CBT 2 + CBAT) Mock Test Series 2025 (New) Quantitative Aptitude Time and Work Work Efficiency
P can complete a work in 6 days. Working with the help of Q, the job is completed in 7 days when P starts the work and P and Q work on alternate days. In how many days can Q alone complete the job?
1
10
2
8
3
9
4
12