Question

In a class of 49 students, number of girls is 2/5 of the boys. Find the number of boys in the class.

Answer 1

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Let the number of boys = x.

Then the number of girls will be 2/5 of the boys = 2/5 * x.

Given that Total number of students = 49.

x + 2/5 * x = 49

7/5 * x = 49

7x = 49 * 5

x = 245/7

x = 35.

Therefore the number of boys in the class = 35.

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Answer 2

$\huge\star\mathfrak\red{{Answer:-}}$

Let number of boys be x

number of girls are 2/5 x

tot number of students = x + 2/5 x

according to question

x + 2/5 x =49

7/5 x = 49

x = 49*5/7

x =35

no. of boys are 35