Yg no 15 dan 16 mohon dikerjain ya plissss

Andi : Bondan = 5:4; Bondan : Candra = 3:4
Andi + Bondan + Candra = 43.000
Andi = 5/4. Bondan
Candra = 4/3. Bondan
diperoleh,
(5/4 Bondan) + Bondan + (4/3.Bonsan) = 43.000
(5/4+1+4/3).Bondan = 43.000
(15/12 + 12/12 + 16/12).Bondan = 43.000
43/12. Bondan = 43.000
Bondan = 43.000 . 12/43
= 12.000