Q45
The speed of a boat in still water is 15 km/h, and the speed of the current is 5 km/h. In how much time (in hours) will the boat travel a distance of 60 km upstream and the same distance downstream?
A.
10 hr
B.
9 hr
AnswerC.
20 hr
D.
12 hr
Answer: Option B
Solution
Answer: Option B
Solution:
Speed of boat in still water = 15 km/hrSpeed of stream = 5 km/hr
Total time of upstream and downstream