GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
10. | Two pipes A and B can fill a cistern in 37 1/2 minutes and 45 minutes respectively. Both pipes are openeThe cistern will be filled in just half an hour, if the pipe B is turned off after? | |
A. | 5 min | |
B. | 9 min | |
C. | 10 min | |
D. | 15 min | |