(180)找一下規律

熱心網友

16, 8, 8, 12 ,24, 60, 18016/8=2 8/8=1 8/12=2/312/24=1/224/60=2/560/180=1/3前二數的商-后二數的商2-1=11-2/3=1/32/3-1/2=1/61/2-2/5=1/102/5-1/3=1/15可見分子為1,而分母為一等差數列 1,3,6,10,15其差為2,3,4,5依其推以下數,一定OK!

熱心網友

16, 8, 8, 12 ,24, 60, 180,8/16 =0.58/8 =112/8=1.524/12=260/24=2.5180/60=3