একটি উড়োজাহাজ ঘন্টায় ২৮০ মাইল গতিতে ৬ ঘন্টায় কোনো একটি নিদিষ্ট দূরত্ব অতিক্রম করে। উক্ত দূরত্ব ২ ঘন্টায় অতিক্রম করতে হলে উড়োজাহাজটির গতি কত হবে?
A. ঘন্টায় ৮৪০ মাইল
B. ঘন্টায় ২৮০ মাইল
C. ঘন্টায় ৪২ মাইল
D. ঘন্টায় ৫৬০ মাইল
সঠিক উত্তরঃ
A.
ঘন্টায় ৮৪০ মাইল
Explanation:
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