state gov Kolkata Police Constable Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
Three pipes A, B and C can fill an empty tank in 15, 10 and 5 minutes respectively. When the tank is empty, the three pipes are opened simultaneously. What is the part of work done by B and C?
1
9/11
2
12/11
3
6/11
4
2/11