The sum of all the four-digit numbers that can be formed using all the digits 2 ,   1 ,   2 ,   3 is equal to ____.

Step-by-step solution

Total 4 digit numbers using the digits 1 , 2 , 2 , 3 is = 4 ! 2 ! = 12 Numbers are _     _     _     3 _     _     _     3 _     _     _     3 _     _     _     2 _     _     _     2 _     _     _     2 _     _     _     2 _     _     _     2 _     _     _ &#1