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Following are the car parking charges near a railway station up to Check if the parking charges are in direct proportion to the parking time.


for 4 hrs: \(\frac{{60}}{{4}}={15}\)

for 8 hrs: \(\frac{{100}}{{8}}={12.5}\)

for 12 hrs: \(\frac{{140}}{{12}}=\frac{{70}}{{6}}\)

for 24 hrs: \(\frac{{180}}{{24}}={7.5}\)

as we can see, the proportions are unequal

so parking charges are not in direct proportions to the parking time

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