Question 174778
The number is {{{20}}}
(1) First of all, if a number is {{{10}}} times anything,
The units digit must be {{{0}}}
(2) The problem says the tens digit is two greater
that the units digit, so the tens digit must be {{{2}}}
This satisfies the problem
For any number greater than 20, either (1) or (2) is violated,
or ten times the sum of the digits will always be less than
the number itself