4 - 3 = 1 7 - 4 = 3 8 - 7 = 1 11 - 8 = 3 12 - 11 = 1 X- 12 = 3 = 15
Complete series: 3, 4, 7, 8, 11, 12. X. ......?
Review the verified answer and explanation for this ASF Airports Security Force past-paper question on CampusFin.
Review the verified answer and explanation for this ASF Airports Security Force past-paper question on CampusFin.
4 - 3 = 1 7 - 4 = 3 8 - 7 = 1 11 - 8 = 3 12 - 11 = 1 X- 12 = 3 = 15