Question

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

Answer 1

Answer:

Solution 1 :

Time taken by train to cover 51 km is 45 min

Time taken to cover 1 km = 45 / 51 km

Time taken to cover 221 km = ( 45 / 51) * 221 = 195 min

Therefore the train takes 3 hours and 15 min to cover 221km.

Solution 2:

Time taken by train to cover 51km = 45min

So, 17km = 15min

Then, 221/17 = 13

13 * 15 = 195min

195min = 3hrs. 15min

Hope it helps.

Answer 2

According to the information provided in the question.

It is stated in the preceding question that,

The presented information is 51 km in 45 minutes.

We need to find the time to cover 221km.

As a result, the simplified equation is,

Time taken for 1km,

$=\frac{45}{51}$

Time taken to cover 221km is as follow,

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

Hence 195 minutes to travel 221km.