Complete the following series.
$C 4 X, F 9 U, I 16 R, . . . .$

K 25 P

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L 25 P

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L 25 O

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L 27 P

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Solution

The correct option is D $L 25 O$
We will consider this as 3 series.
First series is of 1st letter
$3, 6, 9, 12$
$12 \to L$
Second series consist of square of $2, 3, 4, 5$
$5^{2}$ $= 25$
Third series consist of last letter $(+ 4, + 6, + 8)$
$24, 21, 18, 15$
$15 \to O$
Thus, $L 25 O$ is correct.

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