Estimate what part of the figures is coloured and hence find the per cent which is coloured.
Solution:
(i)
In this figure, one part out of four parts is coloured.
So the fraction of the coloured part is 1/4.
Convert the fraction into a percentage by multiplying the fraction by 100.
Percentage of coloured part = 1/4 ×100
= 25%
(ii)
In this figure, three parts out of five parts are coloured.
Hence the fraction of coloured parts is 3/5.
Percentage of coloured part = 3/5 × 100
= 60%
(iii)
In this figure, three parts out of eight parts are coloured.
Hence the fraction of coloured parts is 3/8.
Percentage of coloured part = 3 / 8 ×100
= 37.5%
☛ Check: NCERT Solutions for Class 7 Maths Chapter 8
Video Solution:
Estimate what part of the figures is coloured and hence find the per cent which is coloured
Class 7 Maths NCERT Solutions Chapter 8 Exercise 8.2 Question 3
Summary:
The part that is colored has been estimated and the percentage is found as follows: (i)Percentage of coloured part is 25%, (ii)Percentage of coloured part is 60%, (iii) Percentage of coloured part is 37.5%
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