Discuss Forum
1. A train 360 m long is running at a speed of 45 km/hour. In what time will pass a bridge 140 m long?
- A. 40 seconds
- B. 40 seconds
- C. 40 seconds
- D. 40 seconds
Answer: Option A
Explanation:
Hints: train অতিক্রম করে নিজের length এবং bridge এর length 45km/hr = ( 45÷3.6)ms - 1 = 12.5 ms - 1
Time = 140 + 360 /12.5 = 40seconds.
Post your comments here: