3. CBQ - Find the numbers

A jewellery shop uses a \(4\)-digit security code to open its digital safe. One day, the manager forgot the code but found a clue written on a note that \(P0QR\) by \(2\) is \(2SR8\), where \(A\), \(B\), \(C\) and \(D\) represent digits.

 

After careful investigation, the manager discovered that the code satisfies the above condition.

 

1. Calculate the value of \(P\).

 

2. Calculate the value of \(S\) is

 

3. The value of \(R\) is 

 

4. The value of \(Q\) is