A can run a km in 3 min. 10 sec. and B in 3 min. 20 sec. By what distance can A beat B ?

Explanation

To solve the problem of how much distance A can beat B, we will follow these steps:

### Step 1: Convert the running times of A and B into seconds.
- A's time: 3 minutes 10 seconds
- Convert minutes to seconds: \(3 \times 60 = 180\) seconds
- Add the remaining seconds: \(180 + 10 = 190\) seconds
- B's time: 3 minutes 20 seconds
- Convert minutes to seconds: \(3 \times 60 = 180\) seconds
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