What number will replace the ?
$2, 3, 5, 7, 11, ?, 17$

12

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13

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14

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15

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Solution

The correct option is B $13$
Clearly, the given series consists of prime numbers starting from 2.
So, the missing term is the prime number after 11, which is 13
Hence,option B is the correct answer.

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Similar questions

17, 14, 15, 12, 13, 10, . . . . .

2, 3, 5, 7, 11, ?, 17

Replace by the correct number:
(i) $- \frac{5}{8} = \frac{1}{4}$
(ii) $- \frac{1}{5} = \frac{1}{2}$
(iii) $\frac{1}{2} - = \frac{1}{6}$

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