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3 : 2
3y : 2y
jumlahnya = 20 ha
maka
20 = 3y + 2y
20 = 5y
20 : 5 = y
4 = y
maka
anak a = 3y = 3 x 4 = 12 ha
anak b = 2y = 2 x 4 = 8 ha
jumalah :20
:3-2. :1
3+2:5
1. ×20=100
5