In a school the number of boys and that of the girls are in the respective ratio of 2 : 3. If the number of boys is increased by 20% and that of girls is increased by 10%, what will be the new ratio of number of boys to that of the girls?

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BANK PO Exam (SBI) 2001 click here to view all questions

In a school the number of boys and that of the girls are in the respective ratio of 2 : 3. If the number of boys is increased by 20% and that of girls is increased by 10%, what will be the new ratio of number of boys to that of the girls?

A14 : 5

B5 : 8

C13 : 4

DNone of these

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Correct answer is: None of these Explanation: Ratio of no. boys : girls = 2 : 3 Let the no. of boys = 2x Then the no. of girls = 3x No. of boys after 20% increase = 1.20 x 2x = 2.4 x. No. of girls after 10% increase = 1.10 x 3x = 3.3x Required ratio $=\frac{2.4x}{3.3x}=\frac{8}{11}=8:11$ Nithin ? answered undefined All Comments

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