Question

Sample Problem 2. The train 'A' travelled a distance of 120 km in 3 hours whereas another train
travelled a distance of 180 km in 4 hours. Which train travelled faster ?
​

Answer 1

Answer:

Solution. In order to solve this problem

, we have to calculate the speeds of both the trains separate

The train having higher speed will have travelled faster.

60 km

Kilom

cover

(1) We know that:

Distance travelled by train A

And,

Now,

So,

Distance travelled

Speed

Time taken

120 km

Time taken by train A - 3 h

120 km

Speed of train A

3 h

40 km/h

Thus, the speed of train A is 40 kilometres per hour.

Distance travelled

Speed -

Time taken

Distance travelled by train B 180 km

Time taken by train B = 4h

180 km

Speed of train B-

(ii) Again,

Now,

And,

So,

45 km/h

Thus, the speed of train B is 45 kilometres per hour

From the above calculations we find that train A travels a distance of 40 kilometres in one he

whereas train B travels a distance of 45 kilometres in one hour. It is obvious that train B travelled faster the

train A

breve

school

Explanation: