Select any 3-digit number with all digits different from one another. Write all possible 2-digit numbers that can be formed from the 3-digits selected earlier. Then divide their sum by the sum of the digits in the original 3-digit number.

You should always get the same answer, 22. There ought to be a big resulting “Wow!”

For example, consider the three-digit number 365.

Take the sum of all the possible two-digit numbers that can be formed from these three digits:

36+35+63+53+65+56 = 308.

The sum of the digits of the original number is
3 + 6 + 5 = 14.

Then 308/14 = 22.

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