A sample of clay was partially dried. It then contained `50%` slica and `7%` water. The original clay contained `12%` water find the percentage of silica in the original sample

Explanation

To solve the problem step by step, we will analyze the given information and perform calculations accordingly.

### Step 1: Understand the composition of the partially dried clay sample

We are given that the partially dried clay sample contains:
- 50% silica
- 7% water

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