A box contain 5 different red and 6 different white balls. In how many ways can 5 balls be selected so that there are at least two balls of each colour ?

Explanation

To solve the problem of selecting 5 balls from a box containing 5 different red balls and 6 different white balls, ensuring that there are at least 2 balls of each color, we can break it down into two cases:

### Step-by-Step Solution:

**Step 1: Identify the Cases**
We need to consider two cases based on the distribution of colors:
1. Case 1: 2 red balls and 3 white balls
2. Case 2: 3 red balls and 2 white balls
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