The cost of living index number in year $2015$ and $2018$ were $97.5$ and $115$ respectively. The salary of a worker in $2015$ was $195000$. How much additional salary was required for him in $2018$ to maintain the same standard of living as in $2015$?

The correct answer is Option c: $3500$. MTP June 23 Series I

Index NumbersMTP June 23 Series IQuestion 3919 of 187

The cost of living index number in year $\displaystyle 2015$ and $\displaystyle 2018$ were $\displaystyle 97.5$ and $\displaystyle 115$ respectively. The salary of a worker in $\displaystyle 2015$ was $\displaystyle 195000$ . How much additional salary was required for him in $\displaystyle 2018$ to maintain the same standard of living as in $\displaystyle 2015$ ?

\displaystyle 3000

\displaystyle 4000

\displaystyle 3500

\displaystyle 4500

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✅ Option c — $\displaystyle 3500$

Paper

Paper 3: Quantitative Aptitude

Weightage

4-6 Marks

Key Topics

Construction of Index Numbers, Time Series

This chapter covers Construction of Index Numbers, Time Series and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

Exam Strategy Tip

This topic carries 4-6 Marks weightage. Focus on understanding core concepts rather than memorizing.

A statistical device for measuring changes in the magnitude of a group of related variables (like prices or production) over time.

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