Jawabanmu

2014-01-20T20:32:25+07:00
B : A = 5 : 1
B = 5A
10 + B = (10+A)2 + B
10 + B = 20 + 2A + 8
10 + B = 28 + 2A
-2A + B = 18
-2A + 5A = 18
3A = 18
A = 6
B = 5A
B = 5 x 6 = 30
1 5 1