Problem: Two trains of equal length of 500 meters starts moving on two parallel railway tracks at a speed of 104 kilometers per hour and 80 kilometers per hour respectively. How much time the faster train will take to cross the slower one.

View all: JANATA, SONALI, AGRANI & RUPALI BANK | OFFICER | WRITTEN QUESTION SOLVE(MATH) | 2008

Correct Answer: The faster train will take time to cross the slower train 75 seconds or 1 min. and 15 seconds.

Explanation:

Faster train moves more (104 — 80) = 24 km.

24 km. = 24,000 meters and 1 hour = (60 x 60) Seconds.

Moves 24,000 meters in = (60 x 60) Seconds

Moves 500 meters in =$\frac{60x60x500}{24000}$= 75 Seconds

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