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a = 2/3b
b = 2/3c
b : c = 2 : 3
c : b = 3 : 2
c = 3/2b
a - c = 165.000
2/3b - 3/2b = 165.000
5/6b = 165.000
b = 198.000
a = 2/3b
a = 2/3 × 198.000
a = 132.000
c = 3/2b
c = 3/2 × 198.000
c = 297.000
Sehingga, jumlah uang mereka adalah
a + b + c = Rp 132.000 + Rp 198.000 + Rp 297.000
a + b + c = Rp 627.000