Question

Following are the car parking charges near railway station upto
$4$ hrs $Rs60$
$8$ hrs $Rs100$
$12$ hrs $Rs140$
$24$ hrs $Rs180$
Check if the parking charges are in direct proportion to the parking time.

Answer 1

Given:

Ratio of parking time to the parking charge

$4$ hours $:Rs.60=1:15$

$8$ hours $:Rs.100=2:25$

$12$ hours $:Rs.140=3:35$

$24$ hours $:Rs.180=2:15$

Since the ratios are not equal. They are not in direct proportion.