Liwanag sold 37 tickets to Manila Zoo. Adult tickets cost Php 3.50 and child tickets cost Php 1.25. She collected 73.25 from the sales of the tickets. How many of each kind were sold?

Answer 1

12 adult and 25 child.
no idea how to do the math, i just guessed and checked until i got the right answer.

Answer 2

X adult tickets: $3.50 ea.
Y child tickets: $1.25 ea.

Eq1: x + y = 37.
Eq2: 3.5x + 1.25y = $73.25.
Multiply Eq1 by -3.5 and add the Eqs.