Question

in a class of 60 students the number of girls is one third the number of boys find the number of girls and boys in the class ​

Answer 1

Total number of students in the class = 60

Let the number of boys be 'x'

So,

The number of girls will be '$\frac{x}{3}$'

Now,

x + $\frac{x}{3}$ = 60

3x + x = 180

4x = 180

x = 45

now,

no. of girls = $\frac{x}{3}$

                  = $\frac{45}{3}$

                  = 15

So,

There are 15 girls and 45 boys in the class

Answer 2

Total number of students=60

Let the number of boys =x

Then, The number of girls=x × 1/3=x/3

$\green{\tt{We \: know \: that :-}}$

$\red{\tt{Total \: no. \: of \: girls + Total \: no. \: of}}$

$\red{\tt{boys = total \: students}}$

$\frac{x}{3} + x = 60$

$\frac{x + 3y}{3} = 60$

$\frac{4x}{3} = 60$

$x = 60 \times \frac{3}{4}$

$x = 15 \times 3$

$\red{\bf{x = 45}}$

$\orange{\tt{Number \: of \: boys = 45}}$

$\orange{\tt{Number \: of \: girls = \frac{x}{3} = 15}}$

$<marquee>$

Follow me