Question

Find the time taken by Shreya to cover a distance of 750 m, if her running speed is 12 km/hr​

Answer 1

Given: Distance = 750 m

               Speed = 12 km/h

• First we will convert the speed into m/s

12 km/h = 12 × $\frac{5}{18}$

            = 3.33 m/s

• The formula which we will use to determine time

Speed = distance / time

Putting the values

3.33 = $\frac{750}{time}$

time =  $\frac{750}{3.33}$

      = 225.22

The time taken by Shreya to cover a distance of 750 m will be 225.22 seconds.

Answer 2

As per data given in the question,

We have to determine the time taken by Shreya to cover a distance of 750m with a speed of 12 Kmph.

As here,

The speed is given in Km/Hr, while distance is given in meter.

So, converting Km/Hr into m/sec.

So, we will get,

$12 \mathrm{~km} / \mathrm{h} &=12 \times \frac{5}{18} \\&=3.33 \mathrm{~m} / \mathrm{s}$

So, for determining the value of time,

We will apply the formula,

$Speed = distance / time$

Now, putting the values given in the question,

We will get,  

$3.33 &=\frac{750}{\text { time }} \\\text { time }=\frac{750}{3.33} \\=& 225.22\: sec$

The time taken by Shreya to cover a distance of 750 meter will be  225.22 seconds.