Question

4. The maximum speed of a train is 80 km/h. it takes 10 h to cover a d istance of 400 km. find the ratio of its maximum speed to its average speed​

Answer 1

Answer:

Explanation:

Given,

Maximum speed = 80 km/h

Time taken = 10h

Distance covered = 400 km

To Find,

Ratio of its maximum speed to average speed.

Formula to be used,

Average speed = Distance covered/Time taken

Solution,

Putting all the values, we get

Average speed = Distance covered/Time taken

Average speed = 400/10

Average speed = 40 km/h

Now, the ratio of its maximum speed to its average speed​,

= 80/40

= 2 : 1

Hence, the ratio of its maximum speed to its average speed​ is 2 : 1.

Answer 2

Given :-

The maximum speed of a train is 80 km/h. it takes 10 h to cover a d istance of 400 km.

To Find :-

The ratio of its maximum speed to its average speed​

Solution :-

Since maximum speed is given

We know that

Speed₂ = Distance/Time

Speed₂ = 400/10

Speed₂ = 40 km/h

Now,

Finding ratio = 80/40

Ratio = 8/4

Ratio = 2/1

Ratio = 2:1