GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
11. | A man can row 30 km downstream and 20 km upstream in 4 hours. He can row 45 km downstream and 40 km upstream in 7 hours. Find the speed of man in still water? | |
A. | 15 kmph | |
B. | 10 kmph | |
C. | 12 kmph | |
D. | 12.5 kmph | |