Question

in a class of 49 student, number of girls is 2/5 of the boys. Find the numbers of boys in the class.​

Answer 1

Answer:

35 boys

Step-by-step explanation:

let the number of boys in the class be x .

$\therefore \:$

A/Q , $\frac{2}{5} x + x = 49$

$\implies \frac{2x + 5x}{5} = 49$

$\implies (2 + 5)x = 49 \times 5$

$\implies 7x = 7 \times 7 \times 5$

$\implies x = \frac{7 \times 7 \times 5}{7}$

$\implies x = \frac{1 \times 35}{1}$

$\implies x = 35$

Hence, there are 35 boys in the class.

Answer 2

$\huge\sf\pink{\boxed{HEY USER}}$

$\huge\sf\pink{\Underline{\boxed{ANSWER}}}$

$\huge\sf\pink{\Underline{GIVEN}}$

$\sf\blue{Number\:of\:Student=49}$

$\text{No.of Boys be "x"}$

Atq

$\text{Number of girls is=2/5 of the boys}$

Now,

$\text{Number of girls={\frac{2}{5}x}}$

$\text{Number of boys=x}$

$\text{Total Number of student=49}$

Now,

$\implies\sf\blue{\frac{2}{5}x+x=49}$

$\implies\sf\blue{\frac{7}{5}x=49}$

$\implies\sf\blue{x=35}$

Hence,

$\implies\sf\blue{Number\:of\:Boys=35}$

Thank You!

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