Question

A car covers a distance of 16 km in 15 min . Find its speed . full explanation ​

Answer 1

Given

• Distance covered by car - 16 km
• Time taken to cover the distance - 15 min

To Find

• Speed of the car

Concept Knowledge

Here, we have to find the speed. Speed is measured in km/hr or m/min. As we have got km and min both, we can either solve it in km/hr or m/min. km/hr is the basic unit used. Let us solve 15 mins to be first.

We know that:

$\rightarrow \sf{1 hour = 60 minutes }$

$\rightarrow \sf{ \frac{1}{60} hour = 1 minute }$

$\rightarrow \sf{ \frac{1}{60} \times 15 \: hours}$

$\rightarrow \sf{ \frac{1}{ \cancel{60}} \times \cancel15 \: hours}$

$\rightarrow { {\sf { { \frac{1}{4} hour = 15 \: minutes}}}}$

Formula Used

$\large { \boxed {\sf { \red{ speed = \frac{distance}{time} }}}}$

• Now let us solve the equation,

$\rightarrow{ {\sf{ { speed = \frac{16}{ \frac{1}{4} } }}}}$

$\rightarrow{ {\sf{ { speed = 16 \times 4} }}}$

$\rightarrow{ {\sf{ {speed \: = 64km/hr} }}}$

So, the speed covered in 15 mins covering the distance of 16 km is 64km/hr.