alleryএকজন ব্যক্তি 4 km/h গতিতে 2 ঘণ্টা হাঁটেন এবং তারপর 1 ঘণ্টা বিশ্রাম নেন। পুরো 3 ঘণ্টায় গড় গতিবেগ কত?
A8/3 km/h
B3 km/h
C4 km/h
D2 km/h
Answer & Solution
Correct answer: A. 8/3 km/h
মোট 3 hours-এ অতিক্রান্ত দূরত্ব 8 km, সুতরাং গড় হল 8/3 km/h।
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