Question
7 15 44 89 ?
533 What should come in place of the question mark (?) in the following number series?Solution
7 × 2 + 1 = 15 15 × 3 - 1 = 44 44 × 2 + 1 = 89 89 × 3 – 1 = 266 266 × 2 + 1 = 533
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