Question

Q6. A train covers a distance of 51 km in 45 minutes. How long will it take to cover 221 km?

Answer 1

Answer:

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.

Step-by-step explanation:

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Answer 2

Distance Travelled ⟹ 51 km

Time Interval ⟹ 45min ( 45/60 hr = 3/4hr )

Speed ⟹ D / T = 51 ÷ 3/4 = 51 × 4/3 = 17 × 4 = 68km/h

If the distance » 221 km

And,Speed » 68km / h

So, the time taken » d/t = 221/68 = 3.25 hr

Therefore, it will cover 221 km in 3.25 hr or 195 min