Which of the following numbers will replace the question mark in the given series 11 13 29 91 369 nb...........

General Intelligence and Reasoning (CHSL) Number series

Which of the following numbers will replace the question mark (?) in the given series?

11, 13, 29, 91, 369, ?

1815

1851

1158

1518

Let's solve the series: 11, 13, 29, 91, 369, ?

- The pattern seems to be multiplication and increment:

- From 11 to 13: \(11 \times 1 + 2 = 13\)

- From 13 to 29: \(13 \times 2 + 3 = 29\)

- From 29 to 91: \(29 \times 3 + 4 = 91\)

- From 91 to 369: \(91 \times 4 + 5 = 369\)

- Applying the pattern next: \(369 \times 5 + 6 = 1845 + 6 = 1851\)

- The correct number for the question mark is 1851.

- Option 1: 1815

- Incorrect as per the pattern

- Option 2: 1851

- Matches the pattern calculation

- Option 3: 1158

- Doesn't follow the found sequence

- Option 4: 1518

- Not part of the series

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