NIACL Model Paper 10 with solutions for free online practice

Question : 49 of 100

Marks: +1, -0

6 9 15 27 51 ?

Solution:

(2) The pattern is :
6 + 3 = 9

9 + 6 (= 3 × 2) = 15

15 + 12 (= 6 × 2) = 27

27 + 24 ( = 1 2 × 2) = 51

51 + 48 (= 24 × 2) =99

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