alleryএকজন হাইকার 4 কিমি/ঘন্টা বেগে 12 কিমি হাঁটে এবং 1 ঘন্টা বিশ্রাম নেয়। বিশ্রাম সহ গড় গতি?
A4 km/h
B3 km/h
C2 km/h
D5 km/h
Answer & Solution
Correct answer: B. 3 km/h
হাঁটতে সময় লাগে 12 ÷ 4 = 3 ঘন্টা, তাই বাকি সহ গড় গতি হল 12 ÷ 4 = 3 কিমি/h।
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