Question

The number of boys in a class is 3 less than twice the number of girls in the class. If the total number of boys is 15, find the total number of students in the class

Answer 1

Answer:

24

Step-by-step explanation:

let boys be y and girls be x

2x-3=y--------------equation 1

Given,y=15

Putting the value in equation 1:-

2x-3=y

2x-3=15

2x=15+3

2x=18

x=18/2

x=9

Total no.of students=X+y

=9+15

=24

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Answer 2

$\mathfrak{\large{\underline{\underline{Answer :-}}}}$

The students in the Class are 24.

$\mathfrak{\large{\underline{\underline{Explanation :-}}}}$

Given :

Number of boys = 3 less than the Twice of the number of girls

Total Boys = 15

To Find :

The total number of students in the class

Solution :

Consider the number of girls as x

★ ${\boxed{\sf{2x-3=15}}}$

$\sf{\implies} \: 2x - 3 = 15$

$\sf{\implies} \:2x = 15 + 3$

$\sf{\implies} \:2x = 18$

$\sf{\implies} \:x = \dfrac{18}{2}$

$\sf{\implies} \:x = 9$

Girls in the Class = 9

$\rule{300}{1.5}$

Total Number of students in the class =

• Girls = 9
• Boys = 15

$\sf{\implies} \:9 + 15$

$\sf{\implies} \:24$

$\therefore$ The students in the Class are 24.