Question

A car is travelling at the average speed of $72$ km/hr. How much distance would it travel in $10$ minutes?

• A. $8$ km.
• B. $10$ km.
• C. $12$ km.
• D. $16$ km.

Answer 1

The correct option is B $10$ km.

$\text{Distance (in km.)}$	$72$	$x$
$\text{Time (in minute)}$	$60$	$10$

Let the distance be $x$ km.
If the time taken is less, the distance covered will also be less. Therefore, it is a direct variation.
$72:x=60:10$
$\Rightarrow \frac{72}{x}=\frac{60}{10}$
Applying cross multiplication, we get
$x=\frac{72\times 10}{60}=12$
Thus, the required distance will be $12$ km.