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Question 21
In a class, 60% of children like Mathematics, 45% like Science and 25% like both Mathematics and Science. What is the percentage of children who like at least one subject?
Solution
In this questions only mathematics is liked by 60%-25%=35%
Only Science is liked by 45%-25%=20%
both are liked by 25%
Percent of people who like at least one subject=35%+20%+25%
=80%Â Â
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