6, 9, 18, 45, 126, ….? A) 369 B) 359 C) 329 D) 317 Solution Multiply given number by 3, After multiply subtract 9 from same number: 6*3=18-9=9 9*3=27-9=18 18*3=54-9=45 45*3=135-9=126 126*3=378-9=369 Related MCQs: what is 30% of 126? Find the missing numbers in the following number series: Find the missing numbers in the following series: Complete the series: