Question

a train covers a distance of 51km in 45 minutes how long will it take to cover 221km

Answer 1

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Hello I can help you.
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Speed=Distance/Time
So, speed of the train =51/45km
So, Total time it will take to cover 221 km=221÷51/45
=221×45/51
=195 minutes = 3 hours 15 minutes.
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Thanks
Hope it helps.

Answer 2

The given data in the above question,

It is given that train covers 51km in 45 minutes,

we have to find how long will it take to cover a distance of 221 km.

Thus, the time taken to cover 221km is as follow,

The time taken to cover 1 km is $=\frac{45}{51}$

Therefore 221km $=221\times \frac{45}{51} =195minutes$

Hence the train will take 195minutes to cover 221km.