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1. If a man goes 18 km downstream in 4 hours and returns against the stream in 12 hours, then speed of the stream in km/hr is
- A. 1.75
- B. 1.75
- C. 1.75
- D. 1.75
Answer: Option B
Explanation:
[(18/4)-(18/12)]/2
=3/2
=1.5
(ans)
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