Question

The number of males in the classroom is three more than twice the number of females. Of the total number of students is 57, how many females are in the classroom?

Answer 1

Explanation:

Given that the number of males in the classroom is three more than twice the number of females.

the total number of students is 57

Let x be the no of males then no of females =
`57-x`

Also we have 3 more than twice no of females as

`2(57-x)+3`

This equals x

`2(57-x)+3=x\\114-2x+3=x\\3x=117\\x=39`

No of males = 39, no of females = 18