Multiple choice

Directions: In each of the following questions, a letter-number series is given with one or more terms missing as shown by (?). Choose the missing term out of the given alternatives.

2A11, 4D13, 12G17, ?

  1. 36I19

  2. 36J21

  3. 48J21

  4. 48J23
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The first numbers follow n! pattern: 2, 4, 12, 48 (2!=2, 2!×2=4, 4!×3=12, 12×4=48). First letters increase by 2 (A→D→G→J). Last numbers increase by 2 (11→13→17→23). Only 48J23 satisfies all conditions.

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