Question

7. 1 by 4 of an audience are men,
are women and rest are children. What part of the audience are children ​

Answer 1

Given :   1 by 4 of an audience are men, 3 by 5 are women and rest are children.

To Find :  What part of the audience are children ​

Solution:

Let say Total Audience = 20X

1 by 4 of an audience are men  = (1/4)20X = 5X

3 by 5 are women  = (3/5)20X = 12X

Rest are = 20X  - 5X - 12X

=> Rest = 3X

Children = 3X

part of the audience are children ​ = 3X/20X

= 3/20

3/20 part of the audience are children

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