In the following question, select the missing number from the given series.
19, 11, 13, 16, 15, 17, 13, 19, 21, ?
The given series are a combination of 3 series with a gap of two numbers, which are :Â
I : 19 , 16 , 13 , _
II : 11 , 15 , 19
III : 13 , 17 , 21
The missing number is a part of the first series (difference of -3), so next number = 10
=> Ans - (A)
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