The answer is grade point average (GPA)
A=A1+A2+A3+A4
A1 (the base)=5×15/2=37.5
A2=A3 (the sides)
A2=15×9/2=67.5
A4=17×15/2=127.5
A=37.5+67.5×2+127.5
A=300
Given,
Adult Price(x) =8 $
Child Price(y) =6 $
So, 8x+6y=1500$ and also given 210 tickets were sold
So, x+y=210
By solving those two equations we get
No.of adult tickets sold = 120 & no.of child tickets =90
Yep, we can divide 25 to the numerator and denominator.
75 / 25 = 3
100 / 25 = 4
So 75/100 = 3/4