Question

Tolong jawab dong yang pintar no. 11-19!!!please

Answer 1

11). A : B = 4 : 5
Jumlah = 4 + 5 = 9
Nilai A = 4/9 x 144
= 64
Nilai B = 5/9 x 144
= 80
B - A = 80 - 64 = 16 <A>