A train traveled on an average speed of 45 km per hour from Dhaka to Chittagong and returned Dhaka from chittagong on an average speed of 36 km per hour. What was the average speed of the train over the whole journey?
Created: 4 years ago |
Updated: 3 years ago
best des
গড়বেগ = 2xy/x + y কিমি/ঘন্টা
= 2× 45 × 36 / 45 + 36
= 3240/81
= 40 কিমি/ঘন্টা
Md Azizur Rahman
Founder of Satt
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