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Question

Which of the following numbers will replace the question mark (?) in the given series?
11, 13, 29, 91, 369, ?

This question was previously asked in
HTET 2025 Level 1 PRT Question Paper (5-Jul-2026)
The correct answer is

1851

Each term follows term(n+1) = term(n) x k + (k+1), where k = 1, 2, 3, 4, 5 successively: 11x1+2=13, 13x2+3=29, 29x3+4=91, 91x4+5=369, and 369x5+6=1851.

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