In one hour, a boat goes 13 km/hr in the direction of the stream and 7 km/hr…
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In one hour, a boat goes 13 km/hr in the direction of the stream and 7 km/hr against the direction of the stream. What will be the speed of the boat in still water?
- A.
8 km/hr
- B.
10 km/hr
- C.
14 km/hr
- D.
6 km/hr
Attempted by 5 students.
Show answer & explanation
Correct answer: B
Answer: (2) 10 km/hr
Solution:
According to the formula,
Speed of a boat in still water = ½ (DownstreamSpeed + UpstreamSpeed)
Speed of boat in still water = ½ (13+7) = ½ × 20 = 10 km/hr