Question

The ratio of boys to girls in a class is 2:3. There are 30 students in the class. How many more girls than boys are there?

Answer 1

Answer:

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Answer 2

Answer:

There are 6 girls more than boys.

Step-by-step explanation:

Given,

     Ratio of boys to girls is 2 : 3.

Let the number of boys be 2a and number of girls be 3a.

In class,

   ⇒ Number of students = number of boys + number of girls

⇒  30 = 2a + 3a   { given, total = 30 }

⇒ 30 = 5a

⇒ 30 / 5 = a

⇒  6 = a

         There are 3a - 2a girls more than boys, so number of girls( extra ) is 3a - 2a = a = 6( from above ).