Question

Find the missing term in the following series: \[ \text{ab},\ \text{abbc},\ \ ? \ ,\ \text{abcbcde},\ \text{abbcdcdeef} \]

• A. abcccd
• B. abbecd
• C. abbccl
• D. abbcdd

Hint:

In alphabetical series, look for overlapping character groups or string expansions from one term to the next.

Answer 1

The Correct Option is B

Analyze the series step-by-step: 1. ab 2. abbc = ab + bc 3. Missing term = ? 4. abcbcde = ab + bc + bcd + cde 5. abbcdcdeef = ab + bc + bcd + cde + deef Let’s break it down: - There’s a pattern of adding overlapping pairs: - 1st: ab - 2nd: ab + bc - 3rd (missing): ab + be + ec + cd → abbecd (Option 2) - 4th: ab + bc + cd + de = abcbcde - 5th: ab + bc + cd + de + ef = abbcdcdeef Option 2, abbecd, follows the gradual increase of the sequence with overlapping elements.