alleryએક નાવિક પ્રવાહની દિશામાં 24 km અંતર 2 કલાકમાં કાપે છે અને 3 કલાકમાં પાછો આવે છે. પ્રવાહની ઝડપ કેટલી છે?
A1 km/h
B2.5 km/h
C2 km/h
D1.5 km/h
Answer & Solution
Correct answer: C. 2 km/h
ઝડપ 12 અને 8 km/h છે, તેથી પ્રવાહની ઝડપ (12 - 8) / 2 = 2 km/h થાય.
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