A group of people bought movie tickets at the AMC Century City. They bought a total of 7 tickets, some adult and some kid tickets. They spent a total of $72. If adult tickets cost $12 and kid tickets cost $9, how much of each were purchased?

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Answer 1 · 2018-07-26T11:12:43

Number of adult tickets bought was #3# and
number of kid tickets bought was #4# in number.

Let's assume the number of adult tickets bought was #x# in

number. Then, the number of kid tickets bought was #7-x# .

Total cost is then , # 12*x + (7-x)*9 =72# or

#12 x +63- 9 x =72 or 3 x = 72-63 or 3 x =9#

or # x=3 :. 7-x= 7-3 =4#

Therefore, number of adult tickets bought was #3# and

number of kid tickets bought was #4# in number. [Ans]