Number Series, Coding and DecodingMCQPYQ Nov 19Question 2012 of 217

Complete the series $\displaystyle 4, 16, 36, 64, 100, \_\_\_\_\_\_$ ?

A144

B121

C49

D120

For any discrepancies in this question, email contact@cadada.in

Correct Answer

✅ Option a — 144

We are given the series:

\displaystyle 4, 16, 36, 64, 100, \dots

Let's express each term as a perfect square:
-

\displaystyle 4 = 2^2

\displaystyle 16 = 4^2

\displaystyle 36 = 6^2

\displaystyle 64 = 8^2

\displaystyle 100 = 10^2

We observe that the series consists of the squares of consecutive even numbers (

\displaystyle 2, 4, 6, 8, 10, \dots

).
The next even number in the sequence is

\displaystyle 12

.
Therefore, the next term is:

12^2 = 144

Hence, **Option A** is the correct answer.

Paper

Paper 3: Quantitative Aptitude

Weightage

5 Marks

Key Topics

Number series, Coding & Decoding, Odd man out

This chapter covers Number series, Coding & Decoding, Odd man out and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

Exam Strategy Tip

This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.

Practice all 217 questions with instant feedback, earn XP, track your streaks, and ace your CA Foundation exam.