The boys and girls in a school are in the ratio 3:2. If 15 %of the boys and 10%of the girls are above the age of sixteen, what percentage of students consists of those who are below sixteen.
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Step-by-step explanation:
Given ratio is 3:2. So their fractions can be 3/5 & 2/5
The percentage of boys above sixteen is 15% and the percentage of girls above sixteen is 10%.
The percentage of boys less than sixteen is 85% and the percentage of girls less than sixteen is 90%.
so,
(85/100)(3/5)+(90/100) (2/5)
=51/100+36/100
=87/100 = 87%
So percentage of students below sixteen is 87%.
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