Question

The radio of boys to girls at mathematics high school is 4:3 if there are 1526 students at the school, how many are girls

Answer 1

654 girls

Explanation:

sum the parts of the ratio , 4 + 3 = 7 parts

divide total by 7 to find the value of one part of the ratio

1526 ÷ 7 = 218 ← value of 1 part of the ratio , then

number of girls = 3 × 218 = 654