The ratio boys to girls was 5:3. There were 42 girls. Find the number of boys.

Question

Would love the help, don’t understand these kinds of problems.

Answer 1

5:3 means 5 boys and 3 girls for every grouping of 8 children. There were 42 girls.

Get the proportion of girls by dividing 3 by 8 = 0.375.

Divide 42 by 0.375 to get 112, the total number of children.

Finally, the number of boys is 112-42 = 70.