alleryএখন গাড়ীয়ে 2 ঘণ্টাত 120 কিলোমিটাৰ অতিক্ৰম কৰিব লাগিব। 40 কিলোমিটাৰ প্ৰতি ঘণ্টাত 40 কিলোমিটাৰ যোৱাৰ পিছত, প্ৰয়োজনীয় গতি?
A100 km/h
B80 km/h
C60 km/h
D90 km/h
Answer & Solution
Correct answer: B. 80 km/h
প্ৰথম 40 কিলোমিটাৰ 1 ঘণ্টা সময় লাগে, 80 কিলোমিটাৰ ঘণ্টাত 80 কিলোমিটাৰ বেগত 1 ঘণ্টাত অতিক্ৰম কৰিবলৈ বাকী থাকে।
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