Question

Excluding the stoppage of the metro station, the speed of the metro train is 60 kilometers per hour and including the station stop, it is 48 kilometers per hour. How many minutes does the metro train stop every hour?

A. 9 minutes

B. 8 minutes

C. 12 minutes

D. 14 minutes
1. B
2. C
3. D
4. A

Answer 1

Correct Answer - Option 2 : C

Given:

Speed of the metro train excluding stoppages = 60 km/hour

Speed of the metro train including stoppages = 48 km/hour

Formula used:

Speed = Distance/Time

Calculation:

According to question

Loss in speed when including stoppages = 60 − 48 = 12 km/hour

⇒ In 1-hour train covers 12 km less due to stoppages

Hence, the time in which the Train stops per hour

⇒ Time is taken to cover 12 km

Speed = Distance/Time

⇒ 60 = 12/Time

⇒ Time = 12/60 = 1/5 hour

⇒ Time = 1/5 × 60 = 12 minutes

∴ The metro train stops 12 minutes every hour