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Rini = b
a+b = 2.000.000
a-b = 500.000
eliminasi sehingga:
2a = 2.500.000
a = 1.250.000
sehingga b :
b = 2.000.000 - 1.250.000 = 750.000
maka, a:b
1.250.000 : 750.000 (dibagi 250.000)
5:3
Perbandingan uang Rina dan Rini = 5:3