Question

A Train completes a journey with a few stoppages in between at an average speed of 40 Km per hour. If the train had not
stooped anywhere, it would have completed the journeyat an average speed of 60 Km per hour. On an average, how many minutes per hour does
the train stop during the journey?
a. 20 minutes per hour
b. 18 minutes per hours
c. 15 minutes per hours
d. 10 minutes per hours

Answer 1

Here's your answer!!

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It's given that,


Without stoppage the average speed was 60km/h
Means without stoppage distance travelled=60km


With stoppage speed was 40km/h
That is,distance travelled=40km


Now,


Time taken at stoppage= 60km-40km

$= > 20km$

Since,the speed is 60km per hours ,
Means 60km in 60 min.

So,

1km is covered in 1 min.

Therefore,
$= > 20km \\ = > 20 \times 1 \\ = > 20minutes$

Hence,
Option (a)20m/h is correct

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Hope it helps you!! :)