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90 orghr = 35mainan
1 orghr = 35/90 = 7/18
10 x 9 = 90 org hari
90 x 7/18 = 35 mainan
10 = x = 9
__________
90 = 175 = 25
90 = 9x = 81
____________
81/25 = 9x/175
X = 63
#maaf klo salah