Answer:
48
Explanation:
Lets assume that the third runner up eats x hot dogs.
The total time for the contest is 15x seconds.
Given is that the winner ate (x+24) hot dogs
The winner's rate of eating is 1 hot dog per 7.5 seconds.
And we know the rate = total time/number of hot dog eaten
We get;
[tex]\frac{15}{x+24} = 7.5[/tex]
solving we get x= 24
therefore the winner ate 24+24= 48