Suppose there are 30 Girls and 60 Boys in a class. 15 new boys and 10 new girls have been admitted into the class. What is the new ratio of the number of girls to the number of boys in the class?

3 : 4

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8 : 15

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9 : 14

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2 : 3

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Solution

The correct option is B 8 : 15
Initially, there were 30 Girls and 60 Boys.
After, the new admissions,
Number of Girls = 30 + 10 = 40
Number of Boys = 60 + 15 = 75

$∴$ The new ratio of the number of girls to the number of boys is 40 : 75
$\Rightarrow$ 8 : 15
$∴$ (B) is the required answer.

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Suppose there are 30 Girls and 60 Boys in a class. 15 new boys and 10 new girls have been admitted into the class. What is the new ratio of the number of girls to the number of boys in the class?

The correct option is B 8 : 15Initially, there were 30 Girls and 60 Boys. After, the new admissions, Number of Girls = 30 + 10 = 40 Number of Boys = 60 + 15 = 75 ∴ The new ratio of the number of girls to the number of boys is 40 : 75 ⇒ 8 : 15 ∴ (B) is the required answer.

The correct option is B 8 : 15
Initially, there were 30 Girls and 60 Boys.
After, the new admissions,
Number of Girls = 30 + 10 = 40
Number of Boys = 60 + 15 = 75

$∴$ The new ratio of the number of girls to the number of boys is 40 : 75
$\Rightarrow$ 8 : 15
$∴$ (B) is the required answer.