There were an equal number of boys and girls in a school auditorium. After 24 boys left the auditorium, there were 3 times as many girls as boys. How many children were there in the beginning?

Step-by-step explanation:

x=# of boys, y=# of girls

after 24 boys have left, we have 3 times as many girls

y=3(x-24)

because there are the same number of girls as boys - we create this equation

x=y

then we can use substitution

y=3(y-24)

y=3y-72

-2y=-72

y=36

because there are 36 boys, that means there are also 36 girls - leaving you with 72 children in the beginning.

hope this helps!!

the  office resources  are the human, physical and financial  resources  which are utilized for performing all the activities in order to achieve the organizational objectives.

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