GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
3. | The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is_______? | |
A. | 5km/hr | |
B. | 8 km/hr | |
C. | 10 km/hr | |
D. | 15 km/hr | |