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Jumlah suara pemenang
= [100%-(15+20+22+13+7)%] × [906-6]
= [100%-77%] × 900
= 23% × 900
= 207 (D)
19]
x - y + 1 = 3
x - y = 3 - 1
x - y = 2 (pers.1)
3 + x + y = 7
x + y = 7 - 3
x + y = 4 (pers.2)
x - y = 2
x + y = 4
-------------- +
2x = 6
x = 6/2
x = 3
x - y = 2
3 - y = 2
y = 3 - 2
y = 1
x/y
= 3/1
= 3 (D)