Perhitunggan : D 6.4 = × = 8.00 ×0.1 1 0.102 = 7.8461984 1 Perhitunggan : BP 7.1 = × 7.00 ×0.1 = 0.153 1 = 4.581079 1 Perhitunggan : D 7.2 × × = = = 18.999 ×0.1 = 18.999 ×0.2 2 1 0.203 0.203 = 9.3528431 = 18.705686 2 1 111