Question

Following are the car parking charges near a railway station

	Number of Hours $\left(x\right)$	Parking charge $\left(y\right)$
upto	$4$ hours	Rs.$60$
	$8$ hours	Rs.$100$
	$12$ hours	Rs.$140$
	$24$ hours	Rs.$180$

Check if the parking charges and parking hours are in direct proportion.

Answer 1

We will find value of $\frac{x}{y}$
If it is a constant, then they are in direct proportion. Otherwise they are not in direct proportion.
$\frac{x}{y}=$ $\frac{4}{60}=$ $\frac{1}{15}$

$\frac{8}{100}=$ $\frac{2}{25}$

$\frac{12}{140}=$ $\frac{3}{35}$

$\frac{24}{180}=$ $\frac{2}{15}$

You can easily observe that all these ratios are not equal. So they are not in direct proportion.