NUMBER SUM

well this is a good one..
Case I
both A and B < 5.
but it can be true as we r getting a three digit number..

so Case II
A + B > 10
so we have AA+BB = CDC..
ie A+B = 1C.
now tens place
D = A + B +1 ..and at hundred's place we have C..so C = 1..so D = 2
the summation is 121..and the numbers will be 77 and 44..

WHAT U THINK ABOUT
22 AND 99
33 AND 88
44 AND 77
55 AND 66