Question

Q.10. In a school the ratio between boys and girls is 3:4. Find the percentage of boys in the school.
(1) 25%
(2) 75%
(3) 50%
(4) 80%
(5) None of these
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Answer 1

total students 3+4=7

Percentage of boys =3/7*100

So answerr will none of these

Answer 2

Answer:

ratio=3:4

let no. of boys be 3x and girls be 4x

Then total students=3x+4x=7x

now percentage

3x/7x*100

=3/7*100

so the answer will be none of these