alleryস্থিৰ পানীত এখন নাও 12 km/h গতিত চলে আৰু সোঁতৰ গতি 3 km/h। সোঁতৰ অনুকূলে ইয়াৰ দ্ৰুতি কিমান?
A9 km/h
B15 km/h
C18 km/h
D12 km/h
Answer & Solution
Correct answer: B. 15 km/h
সোঁতৰ অনুকূলে সোঁতটোৱে সহায় কৰে, 12 + 3 = 15 km/h।
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