Posted by jo on Saturday, February 11, 2012 at 2:38pm.
The sum of the digits of a twodigit number greater than 50 is 12. The difference between the digits is 4. Find the twodigit number

math  bobpursley, Saturday, February 11, 2012 at 2:59pm
first hint:
possibilities that add to 12
57, 66, 75, 84, 93
of those, the difference is 4 is..
84