Question

a train is running at the speed of 75 km per hour what distance will it cover in 20 minutes​

Answer 1

The whole sum is in the S.I. Unit:

Speed= 75km/hr

         =  m/s

         =  m/s

1) Time= 20 mins= 20×60 secs= 1200secs

Distance = Speed×Time

D= ×1200 metres

D= 25000 m= 25 km

2) Distance= 250km = (250×1000) metre, Speed=

Time=

T=12000secs= 3.33 hour

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