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Verified answer
A : B : C2:3 (x4)
4 :5 (x3)
8 : 12 : 15
C-A/A+B+C x 210
= 7/35 x 210
= 1/5 x 210
= 42
Verified answer
A:B=2:3B:C=4:5
A:B:C=8:12:15
A=8/35 x 210= 48
C=15/35 x 210= 90
Selisih=90-48=42