allery300 km দূরত্বে থাকা দুটি গাড়ি 70 km/h এবং 80 km/h গতিবেগে পরস্পরের দিকে চলতে শুরু করে। তারা কখন মিলিত হবে?
A2 ঘণ্টা
B2.5 ঘণ্টা
C3 ঘণ্টা
D1.5 ঘণ্টা
Answer & Solution
Correct answer: A. 2 ঘণ্টা
তারা 150 km/h গতিবেগে পরস্পরের কাছে আসে, তাই 300 / 150 = 2 ঘণ্টা।
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