Find odd one out of the series 37, 45, 49, 65, 79

Option c: 49. Solution: Let's analyze the properties of the numbers in the series 37, 45, 49, 65, 79 : - 49 is a perfect square ( 49 = 72 ). - The other numbers in the series ( 37, 45, 65, 79 ) are not perfect squares. Since 49 is the only perfect square in the series, it is the odd man out. Hence, Option C is the correct answer.

Find odd one out of the series $37, 45, 49, 65, 79$

The correct answer is Option c: $49$. Let's analyze the properties of the numbers in the series $37, 45, 49, 65, 79$: - $49$ is a perfect square ($49 = 7^2$). - The other numbers in the series ($37, 45, 65, 79$) are not perfect squares. Since $49$ is the only perfect square in the series, it is the odd man out. Hence, **Option C** is the correct answer.

Number Series, Coding and DecodingMCQMTP Nov 19Question 2180 of 217

All Questions

Find odd one out of the series $\displaystyle 37, 45, 49, 65, 79$

Options

\displaystyle 37

\displaystyle 45

\displaystyle 49

\displaystyle 65

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Correct Answer

✅ Option c — $\displaystyle 49$

All Options:

A $\displaystyle 37$
B $\displaystyle 45$
C $\displaystyle 49$
D $\displaystyle 65$

Detailed Solution & Explanation

Let's analyze the properties of the numbers in the series

\displaystyle 37, 45, 49, 65, 79

:
-

\displaystyle 49

is a perfect square (

\displaystyle 49 = 7^2

).
- The other numbers in the series (

\displaystyle 37, 45, 65, 79

) are not perfect squares.

Since

\displaystyle 49

is the only perfect square in the series, it is the odd man out.

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

About This Chapter: Number Series, Coding and Decoding

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.

View Official ICAI Syllabus

Exam Strategy Tip

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

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Find odd one out of the series 37,45,49,65,79\displaystyle 37, 45, 49, 65, 7937,45,49,65,79