Let X be the price of one kid's ticket.

So the price of one adult ticket is X*2.

Five kids and two adults are going to the circus, so 6*X + 2*(X*2) = $50.

So 10X=$50

So the price of one kid's ticket is X = $<<5=5>>5.

# Answer

5
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Six kids and two adults are going to the circus. Kid's tickets are on sale for only half of the adult tickets. The total cost is $50. How much is one kid's ticket?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
5
Six kids and two adults are going to the circus. Kid's tickets are on sale for only half of the adult tickets. The total cost is $50. How much is one kid's ticket?
train