Multiple choice

Directions: In the following question a letter number series is given with one term missing as shown by (?). Choose the missing term out of the given alternatives.

2A11, 4D13, 12G17, ?

  1. 36I19

  2. 36I20

  3. 48J21

  4. 48J23

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Three patterns work together. First number: multiply by increasing integers (2×2=4, 4×3=12, 12×4=48). Middle letters: advance by 3 (A-D-G-J). Last number: add consecutive even numbers (11+2=13, 13+4=17, 17+6=23). The missing term is 48J23.