Find the missing number in the series: 2, 5,__ , 19 , 37, 75
1. 10 2. 9 3. 7 4. 8
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Your Answer
Answer is 9
Reason: It is a series following -1 ,+1 pattern
Approching this question from the second last no of the series will make it easier to solve
1.37*2= 74+1= 75
2.19*2=38-1=37
So the next no of the series should be (x)*2+1=19 which gives x=9
and going back to the first no 5*2-1=9 which justifies the required no.
Hence the answer is 9.
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