Atomic number of `Ag` is 47. In the same group the atomic numbers of elements placed above and below `Ag` in long form of periodic table will be `x` and `y` respectively. Given the value fo `(x+y)//12`.

Explanation

To solve the problem, we need to determine the atomic numbers of the elements above and below silver (Ag) in the periodic table and then calculate the value of \( (x + y) // 12 \).

### Step-by-Step Solution

1. **Identify the Atomic Number of Silver (Ag)**:
- The atomic number of silver (Ag) is given as 47.

2. **Determine the Group of Silver**:
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