Selena and Josh were running in a race. Together they ran 36 miles. Josh ran half of the distance that Selena ran. How many miles did Selena run? Let's be accurate as possible.
Let J = Josh's distance. 2J = Selena's distance. J + 2J = 36. 3J = 36 miles. J = 12. 2J = 24 miles. Selena ran 24 miles.
The answer: 24.