Based on trial and error one thing is clear that the only possible solution is if a & b are even and c is odd only then the expression is odd. But no way the total comes to 199.
I've solutions for 299( 12,132,11), 399 (14,252/756,63) but no solutions for 199.
Danish is it true that there is no solution for a,b,c.

Posted by Salil
on 20130325 02:32:25 