Question 33
In the following question, select the missing number from the given series.
11, 13, 16, 18, 21, ?
Solution
'2' and '3' are alternatively added.
11 + 2 = 13
13 + 3 = 16
16 + 2 = 18
18 + 3 = 21
21 + 2 = 23
=> Ans - (D)
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