If `x\ a n d\ y` vary inversely as each other, and `x=10` when `y=6.` Find `y` when `x=15`

Explanation

To solve the problem step by step, we will use the concept of inverse variation.

### Step-by-Step Solution:

1. **Understand the relationship**: Since \( x \) and \( y \) vary inversely, we can express this relationship as:
\[ x \cdot y = k \]
...