Question
23 45 89 155 ? 353
What should come in place of question mark ‘?’ in the following number series?Solution
23 + (2 × 11) = 45 45 + (4 × 11) = 89 89 + (6 × 11) = 155 155 + (8 × 11) = 243 243 + (10 × 11) = 353
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