Question

the ratio of boys to girls at a school is 4:5.there are 220 boys in the school.how many students attend the school

Answer 1

Answer:

ratio 4:5

boys- 220

girls-?

4/5  into 220

=176

means their are 176 girls

so total students= 220 + 176 = 396

Step-by-step explanation:

Answer 2

Answer:

275

Step-by-step explanation:

No of boys =220 ratio of boys to girl =4:5

let the no. of girls be 'x'

so

220 : x : : 4 : 5

220/× : : 4/5

by cross multiplication

4x=220×5

4x=1100

x=1100/4

×=275

so no. of girls are 275