Question

the ratio of boy to girls in a school 1s 5:7. if there are 780 students in the school, how many boys are in the school?

Answer 1

325 boys

Explanation:

The ratio 5:7 represents 5+7=12 students. If we were to proportionalize this ratio to 780 students, we would multiply the ratio by 65/65 since 780/12=65.

Therefore, you have (5*65)/(7*65)=325/455 as your ratio. This means that there are 325 boys in the school