Each month, we will post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that month’s drawing for a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!

Note We email the winner directly every month, and provided we then receive consent from the winner we post his or her name on our Facebook Fan Page .

Good luck! These are tough problems!

This Month's Problem: "Adding Up Digits"

If  mn, and  p are three-digit integers and  m +  n =  p, is the sum of the units digits of  m and  n at least 2 more than the sum of the tens digits of  m and  n?
 
(1) The tens digit of  p is greater than the sum of the tens digits of  m and  n.
 
(2) The tens and units digits of  p are equal.

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