Those ratios are not equivalent because 240 divided by 16 is 15 and 560 divided by 28 is 20.
Answer:

Step-by-step explanation:
<u>Given:</u>
Percentage of Tickets sold at a water park - 68%
The Number of Tickets if the park sold in all - 50
<u>To </u><u>Find:</u>
The Number of child tickets the park sold.
<u>Solution:</u>
We know that 68% equals to 68/100.
Step 1: Multiply 68/100 by 50 which is the number of tickets the park sold :-

<u>Note</u>:The Simplified form of 68/100 * 50 would be the answer to this question.
Step 2: <u>Cancel One zero of 50 and one zero of 100,That is</u>:-

<em>Results to,</em>

Step 3: <u>Cancel 5 and 10, That is</u>:-

<em>Results to,</em>


Step 4: <u>Cancel 68 and 2, That is</u>:-

<em>Results to,</em>


34 is the result.
Hence,

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Distance to travel = 20 m.
Let us determine the time, t, that each participant took to complete 20 m.
Barbara:
Average speed = (3 m)/(2 s) = 1.5 m/s
t = 20/1.5 = 13.3 s
Mark:
t = 5 s
Carlos:
y = x + 1
where
y = 20 m
x = time, t
Therefore
t =x = y - 1 = 20 - 1 = 19 s
Summary:
Barbara: 13.3 s
Mark: 5 s
Carlos: 19 s
Answer:
The winner is Mark