A man fires a gun while standing between two parallel hills. If he hears the first echo after 2 s and the second echo 3 s after the first echo, then calculate the distance between the hills the velocity of sound is 330 m/s.

Explanation

To solve the problem, we will break it down into steps:

### Step 1: Understand the scenario
A man fires a gun, and the sound travels to two parallel hills, creating echoes. The time taken to hear the first echo is 2 seconds, and the time taken to hear the second echo is 3 seconds after the first echo.

### Step 2: Calculate the distance for the first echo
The sound travels to the first hill and back, covering a distance of \(2d_1\) in 2 seconds.

...