Question

there are 2500 students in a school out of them 1100 are girls and the rest boys find the ratio of number of boys to number of girls

Answer 1

no.of . students = 2500.
no.of.girls = 1100.
no.of.boys = no.of.students - no.of.girls.
= 2500 - 1100
=400
boys : girls = 400 : 1100
= 4 : 9

Hope it helps you..
Mark me as brainliast

Answer 2

In a school there are about 2500 students
>> In which 1100 are girls and the boy be X
>> then,
>> 2500=1100+X
>> X=2500-1100
>> X= 1400
now, we got
>> there are 1400 boys in that school

>> we can write them in ratios as
>> 1100:1400 or 11:14