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3 years ago

At a school the number of boys : number of girls = 11 : 9.

Mathematics

2 answers:

jenyasd209 [6]3 years ago

5 0

Answer:

1240

Step-by-step explanation:

the ratio is 11:9

let the number of girls be x, then the number of boys is x + 124

now

$\frac{x+124}{x} = \frac{11}{9}$

9x + 1116 = 11x

2x= 1116

x=558

so total number = x + (x+124) = 1240

gladu [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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