Respuesta :

Answer:

The winner uses 21 seconds to finish the race.

Step-by-step explanation:

Step 1 :

Time taken by Rocky to finish the race = 5/12 of a minute  

Time taken by the winner to finish the race  = 21/25 of Rocky's time

We need to find the actual time taken by the winner to finish the race.

Step 2 :

5/12 of a minute = 5/12 × 60 = 25 seconds

Hence Rocky takes 25 seconds to finish the race.

Since the winner takes  [tex]\frac{21}{25}[/tex] of Rocky's time to finish the race,

the actual time taken by the winner is  [tex]\frac{21}{25}[/tex] × 25  = 21 seconds

Step 3 :

The winner uses 21 seconds to finish the race.

The winner took 21 seconds to finish the race.

Step-by-step explanation:

Step 1:

First, we need to determine how long it took Rocky to finish the race. We need to calculate how much [tex]\frac{5}{12}[/tex] of a minute is.

We multiply the given fraction with the number of seconds in a minute to find out how long it took for Rocky.

The number of seconds in [tex]\frac{5}{12}[/tex] of a minute = [tex]\frac{5}{12} (60) = 25[/tex].

It took Rocky 25 seconds to finish the race.

Step 2:

The winner of the race finished in [tex]\frac{21}{25}[/tex] of Rocky's time.

We need to calculate how much [tex]\frac{21}{25}[/tex] of Rocky's time is.

We multiply the fraction with Rocky's time.

The number of seconds in [tex]\frac{21}{25}[/tex] of Rocky's time = [tex]\frac{21}{25} (25) = 21.[/tex]

So the winner took 21 seconds to finish the race.