[yellow]

10)

A = Apple, O = Orange, P = Pineapple

A + 2O = 125 ------(1)

2P + 2O = 220 -----(2)

3A + 2P = 235 -----(3)

(2) - (1)

2P - A = 95 ----> A = 2P - 95

แทนค่าใน (3)

3 (2P - 95) + 2P = 235

8P - 285 = 235

P = 65 kg