- A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
A. 2 hours
B. 3 hours
C. 4 hours
D. 5 hours
Answer: Option C
- A man’s speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man’s speed against the current is:
A. 8.5 km/hr
B. 9 km/hr
C. 10 km/hr
D. 12.5 km/hr
Answer: Option C - A man can row upstream 10 kmph and downstream 20 kmph. Find the man rate in still water and rate of the stream.
a) 0,5b) 5,5
c) 15,5
d) 10,5
Answer: Option C
- A man takes 3 hours 45 minutes to row a boat 15 km downstream of a river and 2 hours 30 minutes to cover a distance of 5 km upstream. Find the speed of the current.
a) 1 km/hrb) 2 km/hr
c) 3 km/hr
d) 4 km/hr
Answer: Option A