Question 3
Select the option that will correctly replace the question mark (?) in the series.
13, 25, 42, 69, ?
Solution
The pattern followed is :
13 + 12 = 25
25 + 17 = 42
42 + 27 = 69
69 + 42 = 111
The difference between the numbers is 5,10,15 respectively.
=> Ans - (A)
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