alleryএজন চালকে 40 km/h গতিত 3 ঘণ্টা আৰু তাৰ পিছত 60 km/h গতিত 2 ঘণ্টা গাড়ী চলায়। গড় দ্ৰুতি কিমান?
A46 km/h
B48 km/h
C50 km/h
D52 km/h
Answer & Solution
Correct answer: B. 48 km/h
5 hours-ত দূৰত্ব হ'ল 120 + 120 = 240 km, গতিকে গড় হ'ল 48 km/h।
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