state gov AP Police SI (Pre+Mains) Mock Test 2022 Quantitative Aptitude Time and Work Work Efficiency
Three persons P, Q and R have assigned a work. P and Q can complete the work in 15 days and Q and R can complete the work in 18 days and all of them can complete the work in 12 days, then find the number of days in which P and R alone can do the work?
1
P = 36 days, R = 60 days
2
P = 60 days, R = 36 days
3
P = 30 days, R = 54 days
4
P = 15 days, R = 20 days