| A man rows 40 km upstream in 8 h and a distance of 36 km downstream in 6 h. Then speed of the stream is |
A) 0.5 km/h
B) 1.5 km/h
C) 1 km/h
D) 3 km/h
Correct Answer: A
Solution :
| Speed of stream \[=\frac{1}{2}\] |
| (Speed downstream \[-\] Speed upstream) |
| \[=\,\,\frac{1}{2}\,\,\left( \frac{36}{6}-\frac{40}{8} \right)=\frac{1}{2}\,\,(6-5)=\frac{1}{2}=0.5\,km/h\] |
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