Math puzzle

Mathematics
Mathematics
Oct 25, 2011, 1:15 PM |
14

ONLY 42%!!! OF STUDENTS COULD SOLVE THIS CAT QUESTION IN EXAM

5+3+2 = 151022

9+2+4 = 183652

8+6+3 = 482466

 5+4+5 = 202541

THEN ;

7+2+5 =?