- A18 km/h
- B3.5 km/h
- C4 km/h
- D8 km/h
Step-by-Step Solution
Stream speed = km/h. Forgetting to halve gives 8 km/h.
Answer: C) 4 km/h
On the Hooghly, a launch goes at 22 km/h downstream and 14 km/h upstream. How fast is the river flowing?
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