Test your IQ If 5 + 3 = 28 9 + 1 = 810 8 + 6 = 214 5 + 4 = 19 Then 7 + 2 =? I know the answer. Can somebody find a real complicated way to answer it? 5+3+2=151012 9+2+4=183662 8+6+3=482466 5+4+5=202504 7+2+5=?