The boys and girls in a school are in a relationship 7: 8
If the boys have increased by 20% and girls by 10% in the next year, what will be the new relationship?
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The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
Originally, let the number of boys and girls in the college be 7x and 8x respectively.
Their increased number is (120% of 7x) and (110% of 8x).
120/100 * 7x and 110/100 * 8x
42x/5 and 44x/5
The required ratio = 42x/5 : 44x/5 = 42:44
= 21 : 22.
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