Series and Odd Man out Practice Test 2

If 27 is replaced by 36, then a particular order is obtained in the series. That particular order is12, 12 × 1.5 = 18, 18 × 2 = 36, 36 × 2.5 = 90, 90 × 3 = 270 and so on. Therefore, alternative (c)consists of the wrong term.