Answer: 168 child tickets were sold.
Explanation:
Given: The ratio of child to teen to adult tickets sold at a water park on Saturday was 4:1:2.
Let the number of child tickets = 4x , teen tickets = x , adult tickets = 2x
Total tickets = x+4x+2x = 7x =294
Number of child tickets = 4(42) = 168
Hence, 168 child tickets were sold.