A train starts from a place A at 6 am and arrives at another place B at 4.30pm on the same day. If the speed of the train is 40 km/hr, find the distance travelled by the train?

A train starts from a place A at 6 am and arrives at another place B at 4.30pm on the same day. If the speed of the train is 40 km/hr, find the distance travelled by the train?
[A]230 km
[B]320 km
[C]400 km
[D]420 km

420 km
Time = 10\frac{1}{2}hours
= \frac{21}{2}hours
Speed = 40km/h
Distance = Speed \times Time
= 40\times \frac{21}{2} = 420 km
Hence option [D] is correct answer.

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