Join ExamsbookAnswer : 2. "3 kmph"
A boat whose speed in still water is 9 kmph, goes 12 km downstream and comes back in 3 hrs. Find the speed of the stream?5
Q: A boat whose speed in still water is 9 kmph, goes 12 km downstream and comes back in 3 hrs. Find the speed of the stream?
- 11 kmphfalse
- 23 kmphtrue
- 35 kmphfalse
- 44 kmphfalse
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Answer : 2. "3 kmph"
Explanation :
Answer: B) 3 kmph Explanation: Let the speed of the stream = x kmph From the given data, 129+x+129-x=3 hrs 3x2 = 27 => x = 3 kmph Therefore, the speed of the stream = 3 kmph