Question

A horse gallops a distance of 10 kilometers in a time of 30 minutes. its average speed is

Answer 1

D=10km

time 0.5hour

speed 20 km per hour

Answer 2

The average speed is 20km/h.

Given:

A horse gallops a distance of 10 kilometers in a time of 30 minutes.

To Find:

The average speed.

Solution:

To find the average speed we will follow the following steps:

As we know,

Speed is the ratio of the total distance to the time required to complete the distance.

If the displacement is given then we calculate velocity because velocity is displacement per unit of time.

The unit of speed and velocity is km/h or m/s because the unit of distance is km or m while the unit of time is hour or second.

According to the question:

Distance = 10 km

Time = 30 minutes =

$\frac{30}{60} = 0.5h$

Now,

$speed \: = \frac{distance}{time}$

In putting values we get,

$speed \: = \frac{10}{0.5} = 10 \times 2 = 20km {h}^{ - 1}$

Henceforth, The average speed is 20km/h.

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