Question

there are 20% girls in the class if the no of girls 6 find the total no of student in the class

Answer 1

so the total number of children's are 'x'

so the number of boys would be

x-6

so now the equation would be :-

$\frac{80x}{100} = x-6$

since the number of girls are 20% so the number 80%

$80x = 100(x-6)$

$80x = 100x - 600$

$600 = 100x-80x$

$600 = 20x$

$x = \frac{600}{20}$

$x = 30$

so total number of girls

= 6 (given)

and the number of boys would be

= x-6 (proved above)

= 30-6 = 24

Answer 2

HERE IS YOUR ANSWER :-

Let the number of students be x.

Number of girls - 6

percentage of girls - 20%

-----》x = 100 / 20 × 6

= 30

Therefore, thereare 30 students in the class.

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