Find the missing number in the series: 2, 5,__ , 19 , 37, 75

1. 10 2. 9 3. 7 4. 8

Your Answer

9 is the correct answer (2*2)+1=5, (5*2)-1=9, (9*2)+1=19, (19*2)-1=37, (37*2)+1=75,

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