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Verified answer
A:B:C = 3:5:12A + B + C = 120
A: B = 3: 5
maka A = 3B/5
C: B = 12: 5
C = 12B / 5
maka
A + B + C = 120
3B/5 + B + 12B/ 5 = 120
3B + 5B + 12 B = 120(5)
20B = 120(5)
B = 6(5) = 30
A = 3B/ 5 = 3(30)/5 = 3(6) = 18
C = 12B / 5 = 12(30)/5 = 72
Jumlah ternak = 120 ekor
Jumlah perbandingan ternak = 3 + 5 + 12 = 20
----------Jawabannya----------
A = 3/20 X 120
= 18 ekor
B = 5/20 X 120
= 30 ekor
C = 12/20 x 120
= 72 ekor