The number of boys and girls in a class are in the ratio 3:5 respectively. If the number of girls are 12 more than the number of boys,

find the total number of students in the class.

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Solution

The correct option is C
48

Let the Number of boys be 3x and the number of girls be 5x.

It is given that number of girls are 12 more than the number of boys.

$\Rightarrow$ 5x = 3x + 12

$\Rightarrow$ 5x - 3x = 12

$\Rightarrow$ 2x = 12

$\Rightarrow$ x = 6

The total number of students in the class = 3x + 5x = 8x = 8 $\times$ 6 = 48

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The number of boys and girls in a class are in the ratio 3:5 respectively. If the number of girls are 12 more than the number of boys, find the total number of students in the class.

The correct option is C 48 Let the Number of boys be 3x and the number of girls be 5x. It is given that number of girls are 12 more than the number of boys. ⇒ 5x = 3x + 12 ⇒ 5x - 3x = 12 ⇒ 2x = 12 ⇒ x = 6 The total number of students in the class = 3x + 5x = 8x = 8× 6 = 48

The number of boys and girls in a class are in the ratio 3:5 respectively. If the number of girls are 12 more than the number of boys,

find the total number of students in the class.