Girls and boys in a school are in the ratio 2:3. if 20% of girls and 25% of boys are intelligent, then what percentage of students who are not intelligent.
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No. of students who are not intelligent
= [(80/100)X 2x]+
[(75/100)X 3x]
=[(77/20) X (x)]
Required %
= [(77x)/20][1/(5x)] X 100 %
= 77%
= [(80/100)X 2x]+
[(75/100)X 3x]
=[(77/20) X (x)]
Required %
= [(77x)/20][1/(5x)] X 100 %
= 77%
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