What should come in place of the question mark '?' in the following number series? 20, 21, 44, 135, ?, 2725
What should come in place of the question mark '?' in the following number series? 20, 21, 44, 135, ?, 2725 Correct Answer 544
The series follows the following pattern:
20 × 1 + 1 = 21
21 × 2 + 2 = 44
44 × 3 + 3 = 135
135 × 4 + 4 = 544
544 × 5 + 5 = 2725
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Feb 20, 2025