Question

A Train covers the first 160 km of a journey at 40 kmph, the next 180 km at 45 km /hr and the last 200km at 50km/hr.find no. 1 total time it takes to cover journey no. 2 Average speed of the train during the whole journey.

Answer 1

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Answer 2

♧♧HERE IS YOUR ANSWER♧♧

We write the problem as :

160 km _____ 40 km/h
180 km _____ 45 km/h
200 km _____ 50 km/h

So, total journey

= (160 + 180 + 200) km

= 540 km.

In 40 kmph, to cover 160 km, time is taken

= 160/40 hours = 4 hours,

in 45 kmph, to cover 180 km, time is taken

= 180/45 hours = 4 hours and

in 50 kmph, to cover 200 km, time is taken

= 200/50 hours = 4 hours.

Therefore, total time to cover the journey

= (4 + 4 + 4) hours

= 12 hours

and

average speed of the train

= (total journey)/(total time)

= 540/12 km/h

= 45 km/h

♧♧HOPE THIS HELPS YOU♧♧