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Verified answer
N(C) = perbandingan C/jumlah perbandingan x jumlah totaln(C) = 4/2+3+4 x 45
n(C) = 4/9 x 45
n(C) = 4 x 5
n(C) = 20
Jadi banyak kelereng di kotak C adalah 20 buah
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