GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
45. | Two pipes A and B can fill a cistern in 12 and 15 minutes respectively. Both are opened together but after 3 minutes A is turned off. After how much more time will the cistern be filled? | |
A. | 3 1/4 min | |
B. | 5 1/4 min | |
C. | 8 1/4 min | |
D. | 9 1/4 min | |