There's This Question On A 4- Digit Pin Code, Where The Repetition Is Allowed And The First As Well As The Last Digit Must Be Even. There Answer Supposed To Be 4×10×10×4, Not 3. Remember You Can Choose One Even Number For First Position And Still Choose From The Same Number Of Even Numbers Of Which Are 4 For The Last Position
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There's This Question On A 4- Digit Pin Code, Where The Repetition Is Allowed And The First As Well As The Last Digit Must Be Even. There Answer Supposed To Be 4×10×10×4, Not 3. Remember You Can Choose One Even Number For First Position And Still Choose From The Same Number Of Even Numbers Of Which Are 4 For The Last Position