Donna purchases 10 tickets to a state fair.
• She purchases 4 adult tickets for $48.
• The remaining tickets are child tickets, for which she pays a total of $42.
What is the ratio of the price of one adult ticket to the price of one child ticket?
A.
2 to 3
B.
4 to 3
C.
8 to 7
D.
12 to 7