Question

In a class of 56 students, the number of boys is 2/5th of the number of girls. Find the number of boys and girls.

Answer 1

Hey mate!!!!!


Let the number rod girls be x
so number of boys =
$\frac{2}{5} \times x \\ = \frac{2x}{5}$
now given boys + girls = 56

so this means
$\frac{2x}{5} + x = 56 \\ \frac{2x}{5} + \frac{5x}{5} = 56 \\ \frac{7x}{5} = 56 \\ x = 56 \times \frac{5}{7} \\ x = 40$
number of girls = 40
Number of boys =
$\frac{2x}{5} \\ = \frac{2}{5} \times 40 = 16$
boys = 16
girls = 40


Hope it helps dear friend ☺️✌️✌️✌️

Answer 2

Answer:

BOYS = 16

GIRLS = 40

Step-by-step explanation:

Let the number of girls be x

No.of boys = 2/5 of girls

                   = 2/5 multiplied by x

                   = 2x/5

Given, B+G= 56

So,

2x/5 + x = 56

2x/5 + 5x (because of 5+x)/5 = 56

7x/5 = 56

x = 56 multiplied by 5/7 = 40

So, No. of girls = 40

and no. of boys = 56 - 40 = 16