This question was previously asked in

DSSSB TGT Natural Science Female General Section - 27 Sept 2018 Shift 2

- 14
- 16
- 12
- 10

Option 3 : 12

Given:

A train without stoppage travels with an average speed of 80 km/h

And with the stoppage, it travels with an average speed of 64 km/h

**Concept used:**

Time of rest per hour = The difference in average speed/The speed without stoppage.

Calculation:

Without stoppage average speed = 80 km/h

With stoppages average speed = 64 km/h

According to the concept,

Required time = [(80 – 64)/80] × 60 = 12

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