# Ex 8.2, 3 - Chapter 8 Class 7 Comparing Quantities

Last updated at Nov. 6, 2018 by Teachoo

Last updated at Nov. 6, 2018 by Teachoo

Transcript

Ex 8.2, 3 (i) Estimate what part of the figures is colored and hence find the per cent which is colored. Part of figure coloured = ๐/๐ Percentage shaded = (๐๐๐๐ก ๐ โ๐๐๐๐)/(๐๐๐ก๐๐ ๐๐๐๐ก๐ ) ร 100% = (1/4)/1 ร 100% = 1/4 ร 100% = 100/4 % Ex 8.2, 3 (ii) Estimate what part of the figures is colored and hence find the per cent which is colored. Parts shaded = 3 Total parts = 5 So, Percentage shaded = (๐๐๐๐ก๐ ๐ โ๐๐๐๐)/(๐๐๐ก๐๐ ๐๐๐๐ก๐ ) ร 100% = 3/5 ร 100% = 3 ร 20% = 60% Ex 8.2, 3 (iii) Estimate what part of the figures is colored and hence find the per cent which is colored. Parts shaded = 3 Total parts = 8 So, Percentage shaded = (๐๐๐๐ก๐ ๐ โ๐๐๐๐)/(๐๐๐ก๐๐ ๐๐๐๐ก๐ ) ร 100% = 3/8 ร 100% = 3/4 ร 50% = 3/2 ร 25% = 75/2 % = 37.5%

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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.