Q1. 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.
We say that x and y are in direct proportion, if or
Hence in the given problem we have,
Charges for the parking :
y | x |
4 hours | Rs. 60 |
8 hours | Rs. 100 |
12 hours | Rs. 140 |
24 hours | Rs. 180 |
considering x to be charged to be paid and y to be the parking time.
Then we calculate ,
For:- 4 hours: 8 hours :
12 hours : 24 hours:
Clearly is not equal to some constant 'k', then we can say that
Parking charges are not in direct proportion to parking time.