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Daniel ran four 5k races this year.his finishing time for the first three races were 25,35, and 27 minutes. His average time for all four races was 30 minutes. What was the finishing time of Daniels fourth race in minutes?

 Mar 29, 2021
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Let's first write down the information that we have.

4 races

30 Minute average

First 3 times are 25, 35, and 27 minutes

 

Average = Sum of times/Number of Times

 

Let's call that last time we are trying to find out "x".

 

\(30 = \frac{x+25+35+27}{4}\)

\(30 = \frac{x+87}{4}\)

\(120 = x+87\)

\(x = 120-87\)

\(x = 33\)

 

Daniel took 33 Minutes to run his 4th 5K.

 Mar 29, 2021

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