Find the missing term in the series:

B12D, G32I, L52N, ?, V92X

Looking at the series: B12D, G32I, L52N, ?, V92X

Let me analyze each component separately.

The first letters are: B, G, L, ?, V

Position in alphabet:

• B is the 2nd letter
• G is the 7th letter
• L is the 12th letter
• V is the 22nd letter

The pattern shows: 2, 7, 12, ?, 22

The difference is +5 each time.

$2 + 5 = 7$

$7 + 5 = 12$

$12 + 5 = 17$

$17 + 5 = 22$

The missing first letter is the 17th letter = Q

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The last letters are: D, I, N, ?, X

Position in alphabet:

• D is the 4th letter
• I is the 9th letter
• N is the 14th letter
• X is the 24th letter

The pattern shows: 4, 9, 14, ?, 24

The difference is +5 each time.

$4 + 5 = 9$

$9 + 5 = 14$

$14 + 5 = 19$

$19 + 5 = 24$

The missing last letter is the 19th letter = S

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The numbers are: 12, 32, 52, ?, 92

The pattern shows:

$32 - 12 = 20$

$52 - 32 = 20$

The difference is +20 each time.

$52 + 20 = 72$

$72 + 20 = 92$ ✓

The missing number is 72

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Therefore, the missing term is Q72S.

The answer is Option 1: Q72S