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(126 + Nilai Susi)/16 = 8,5
126 + Nilai Susi = 136
Nilai Susi = 136 - 126
Jadi Nilai Susi adalah 10
126 = (x1+x2+…+x15)
maka
8,5=(x1+x2+…+x15 +x16)/16
8,5 =( 126 +X16)16
136 = 126 + X16
X16 = 10