Question

12. There are 48 members in a student council in a school and the ratio of the numbers of bays
to the number of girls is 3:1. How many girls should be added to the council to get 3:2​

Answer 1

36 boys and 12 girls in initial to make the ratio three is to two then we have to add more 12 girls

Answer 2

Step-by-step explanation:

Total number of students = 48

Ratio of boys : girls = 3:1

So total number of boys = 3/4 × 48 = 36

total number of girls = 1/4 × 48 = 12

Now, let the number of girls to be added be x

New ratio of boys : girls (ATQ) = 3:2

No. of boys = 36

No. of girls = 12 + x

=》 36 / 12 + x = 3/2

=》 36 × 2 = 3 ( 12 + x) ( cross multiplication)

=》 72 = 36 + 3x

=》 72 - 36 = 3x

=》 36 = 3x

=》 x = 36 / 3

=》x = 12

Therefore the number of girls to be added to make the ratio 3 : 2 = 12.

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