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Verified answer
Kelas 7 MatematikaBab Perbandingan dan Aritmatika Sosial
Agus = a
Bambang = b
Dhika = c
a : b = 3 : 5 = 6 : 10
b : c = 2 : 1 = 10 : 5
a : b : c = 6 : 10 : 5
Jumlah a dan c
= ((6 + 5)/(6 + 10 + 5)) . 840.000
= (11/21) . 840.000
= Rp 440.000,00