Ten cards numbered1 through 10 are placed in a box, mixed up thoroughly and then one card is drawn randomly. If it is known that the number on the drawn card is more than 3, what is the probability that it is an even number.

Explanation

To solve the problem, we need to find the conditional probability that the drawn card is an even number given that the number on the card is more than 3.

### Step-by-Step Solution:

1. **Define Events:**
- Let event \( E \) be the event that the number on the card is more than 3.
- Let event \( F \) be the event that the number on the card is an even number.

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