Question

The number of boys in a class is two more than three times the number of girls.Which one of the following numbers cannot represent the total number of children in the class?

Answer 1

Let number of girls = x and number of boys = 3x.
Then, 3x + x = 4x = total number of students.
Thus, to find exact value of x, the total number of students must be divisible by 4.

Answer 2

Step-by-step explanation:

let no. of boys be x

and no. of girls be y

given that x = 2+3y

you can put given no. of children in this equation if LHS is not equal to RHS then the no. of children could not represent the class