39.In
one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream.
The speed of the boat in still water (in km/hr) is:
A. 3 km/hr B. 5 km/hr
C. 8 km/hr D. 9 km/hr
Answer: Option C
Explanation:
|
Speed
in still water =
|
1
|
(11
+ 5) kmph = 8 kmph.
|
|
2
|
