Question

the no. of boys and girls in a class are in the ratio 7:5 . the nos. of boys is more than the no. of girls. what is total class strength
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Answer 1

Answer:

there can be many answers for example

Step-by-step explanation:

let common ratio be x

so by the problem 7x = number of boys

and 5x = number of girls

here boys > girls

hence 7x > 5x

so we can consider x as 2

then 7 × 2 > 5 × 2

that equals 14 > 10

that means class strength = 14 + 10 = 24

another example

let common ratio be y

so 7y = number of boys

and 5y = number of boys

if boys > girls

then 7y > 5y

now let's consider y = 3

then boys = 7×3

and girls = 5×3

so 7×3 > 5×3

= 21 > 15

here class total strength is = 21 + 15 = 36

that proves the answer is a variable