Final answer:
The distance between town p and town q is 325 kilometers.
Step-by-step explanation:
To find the distance between town p and town q, we can use the formula: Distance = Speed * Time. Let's assume that the distance from town p to town q is 'd'. The time taken for the journey from town p to town q is given by: Time = d/65. The time taken for the return journey is given by: Time = d/average speed. Since the total time taken for the entire journey is 10 hours, we can write the equation: d/65 + d/average speed = 10.
By substituting the given value of the average speed, the equation becomes: d/65 + d/65 = 10. Simplifying this equation gives us: 2d/65 = 10. Solving for d, we get: d = 325.
Therefore, the distance between town p and town q is 325 kilometers.