alleryএটা 100 km-ৰ যাত্ৰাত প্ৰথম 60 km দূৰত্ব 30 km/h গতিত আৰু বাকী 40 km দূৰত্ব 20 km/h গতিত অতিক্ৰম কৰা হয়। গড় দ্ৰুতি কিমান?
A24 km/h
B26 km/h
C25 km/h
D28 km/h
Answer & Solution
Correct answer: C. 25 km/h
সময় হ'ল 2 h আৰু 2 h, গতিকে 4 h-ত 100 km-এ দিয়ে 25 km/h।
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