alleryప్రవాహ దిశలో వేగం 18 km/h మరియు ప్రవాహానికి ఎదురు దిశలో వేగం 10 km/h అయితే, నది ఎంత వేగంతో ప్రవహిస్తుంది?
A2 km/h
B8 km/h
C14 km/h
D4 km/h
Answer & Solution
Correct answer: D. 4 km/h
ప్రవాహ వేగం తేడాలో సగం, (18 - 10) / 2 = 4 km/h.
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