1 . A man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is :
- A. 2.5 km/hr
- B. 4.2 km/hr
- C. 5 km/hr
- D. 10.5 km/hr
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1 . A man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is :
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