Rhonda can run 200 meters in 24 seconds.
Sally takes two seconds longer to run the same distance, so she takes 24 + 2 = 26 seconds to run 200 meters.
Diane can run 200 meters x seconds faster than Rhonda, so she takes 24 - x seconds to run 200 meters.
The total time it takes for the three of them to run the 600-meter relay race is the sum of their individual times: 24 + 26 + (24 - x) = 74 - x seconds.
We are given that the total time is 71 seconds, so we can write: 74 - x = 71.
Solving for x, we get: x = 3.
The value of x is 3.
#### 3
The answer is: 3
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
Rhonda, Sally, and Diane are members of their school's track team.  The three of them run the 600-meter relay race together. Rhonda runs the first 200 meters of the race, Sally runs the second 200 meters of the race, and Diane runs the final 200 meters of the race. Rhonda can run 200 meters in 24 seconds.  Sally takes two seconds longer to run the same distance, while Diane can run 200 meters x seconds faster than Rhonda.  How many seconds does it take for the three of them to run the 600-meter relay race?
If we know the answer to the above question is 71, what is the value of unknown variable x?

### Answer:
