Question

Following are the car parking charges near a railway station upto
4 hours Rs. 60
8 hours Rs. 100
12 hours Rs.140
24 hours Rs.180
Check if the parking charges are in direct proportion to the parking time.

Answer 1

Given parking time and fare list then

4 hours = Rs 60

8 hours = Rs 100

12 hours = Rs 140

24 hours = Rs 180

For 4 hours to 8 hours fare ratio = $\frac{100}{60}=\frac{5}{3}$

For 8 hours to 12 hours fare ratio = $\frac{180}{140}=\frac{9}{7}$

Hence charges are not in direct proportion.