Question

The ratio of boys to girls is 2:5
if the total of people in class is 500 what is the total number of boys​

Answer 1

Answer:

Lettheratioconstantbek,thenno.ofboys=3k

andno.ofgirls=2k

now

3k=6+2k

ork=6

∴no.ofgirls=2k=2×6=12

andtotalno.ofstudents=(3k+2k)=30

Step-by-step explanation:

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Answer 2

Answer:

Rato of boys to girl in ratio=2:5

let the boys 2x and girl be 5x

2x+5x=500

7x=500

x= 71.42 approx

boys =2x= 71.42×2

=142.84

hence, the total no.of boys is 142.84