alleryএকটি গাড়ি অবশ্যই 120 km 2 h কভার করতে হবে। 40 km 40 km/h এ, প্রয়োজনীয় গতি
A100 km/h
B80 km/h
C60 km/h
D90 km/h
Answer & Solution
Correct answer: B. 80 km/h
প্রথম 40 km 1 ঘন্টা সময় নেয়, 80 km ছেড়ে 1 ঘন্টা 80 km/h এ কভার করতে।
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