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Sequence

4, 9, 25, ?, ...

Question

4, 9, 25, ?, 121, 169, 289, 361

A

49

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B

64

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C

81

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D

87

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Solution

The correct option is A 49
The given series consists of squares of consecutive prime numbers
i.e. $2^{2}, 3^{2}, 5^{2}, . . . . .$ ,
$11^{2}, 13^{2}, 17^{2}, 19^{2}$ .
So, missing term = $7^{2} = 49$ .

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