Excluding stoppages the speed of a train is 45 kmph and including stoppages it is 36 kmph Of how man...........

Quantitative Aptitude ( CCS) Time & distance

Excluding stoppages, the speed of a train is 45 kmph and including stoppages it is 36 kmph. Of how many minutes does the train stop per hour?

- The train travels at 45 km/h without considering stoppages.

- Including stoppages, the effective speed becomes 36 km/h.

- This means the train effectively covers 36 km instead of 45 km in one hour.

- The difference in distance covered in an hour due to stoppages is 45 km - 36 km = 9 km.

- This implies the train stops long enough to reduce the travel by 9 km.

- The time taken to cover 9 km at 45 km/h is (9/45) * 60 minutes = 12 minutes.

- Therefore, the train stops for 12 minutes per hour.

Option:1 - 12 is correct.

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Ans should be 15 kindly check