ok i m posting the list of all such possible values in no particular order ...but once a particular 'sum' has been mentioned atleast twice i will not write it down again(which automatically implies that it cant be the answer)...so here it goes:
13+4=17
16+7=23
13+10=23
27+2=29
25+4=29
30+5=35
17+10=27
32+5=37
8+3=11
26+9=35
29+24=53
7+4=11
38+3=41
27+10=37
26+27=53
22+19=41
41+6=47
31+16=47
18+9=27
i think these are the only sums possible with the conditions on two numbers.
we can easily sort out that 17 is the only number which has occurred only once...
hope this ends up the forum discussion.
