Boys vs Girls Class Numbers

This problem requires calculating the percentage increase needed for the number of girls to become equal to the number of boys in a class.

• Number of boys: 36
• Number of girls: 24

Percentage Increase Calculation

To find the percentage increase, we first determine the difference in numbers and then calculate this difference as a percentage of the original number of girls.

1. Calculate the difference between the number of boys and girls:

   Difference = Number of boys - Number of girls

   Difference = 36 - 24 = 12

   This means 12 more girls are needed.

2. Calculate the percentage increase required:

   The formula for percentage increase is:

   Percentage Increase = \( \frac{\text{Required Increase}}{\text{Original Number of Girls}} \times 100\% \)

   Substitute the values:

   Percentage Increase = \( \frac{12}{24} \times 100\% \)

   Simplify the fraction:

   Percentage Increase = \( \frac{1}{2} \times 100\% \)

   Calculate the final percentage:

   Percentage Increase = 50%

Therefore, the number of girls must be increased by 50% to equal the number of boys.