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  1. Chapter 13 Class 8 Direct and Inverse Proportions
  2. Serial order wise

Transcript

Ex 13.1, 1 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 write it in table Checking ratio of (๐‘ท๐’‚๐’“๐’Œ๐’Š๐’๐’ˆ ๐’•๐’Š๐’Ž๐’†)/(๐‘ท๐’‚๐’“๐’Œ๐’Š๐’๐’ˆ ๐’„๐’‰๐’‚๐’“๐’ˆ๐’†๐’”) 4/60 = 1/15 8/100 = 2/25 12/140 = 3/35 24/180 = 2/15 Since ratio of time & charges is not the same. Parking charges are not in direct proportion to parking time.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.