sundetamanjol (4.23 - 2.34) / 21 = 1.89 / 21 = 0.09
(7.13 + 9.25) / 13 = 16.38 / 13 = 1.26
(50 - 8.6) / 92 = 41.4 / 92 = 0.45
(28.88 + 35.80) / 28 = 64.68 / 28 = 2.31
(65.97 - 0.45) / 52 = 65.52 / 52 = 1.26
(1.85 + 3.25) / 34 = 5.1
(4.04 + 5.16) / 46 = 9.2 / 46 = 0.2
(0.8 + 0.55) / 15 = 1.35 / 15 = 0.09