GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
7. | One top can fill a cistern in 2 hours and another can empty the cistern in 3 hours. How long will they take to fill the cistern if both the taps are opened? | |
A. | 5 Hours | |
B. | 6 Hours | |
C. | 7 Hours | |
D. | 8 Hours | |