Ratio, Proportion, Indices, LogarithmMCQMTP June 2023 Series IIQuestion 844 of 302
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The monthly incomes of A\displaystyle A & B\displaystyle B are in the ratio $4:5$ are their monthly expenditures are in the ratio $5:7$. If each saves Rs.150\displaystyle Rs.\displaystyle \text{Rs.} 150 per month, find their monthly incomes.

Select Your Answer (Keyboard: A, B, C, D)
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Correct Answer

✅ Option c — (400,500)\displaystyle (400, 500)

All Options:

  • A(40,50)\displaystyle (40, 50)
  • B(50,40)\displaystyle (50, 40)
  • C(400,500)\displaystyle (400, 500)
  • D(500,400)\displaystyle (500, 400)

Detailed Solution & Explanation

Let IA\displaystyle I_A and IB\displaystyle I_B be the monthly incomes of A and B, respectively. Let EA\displaystyle E_A and EB\displaystyle E_B be the monthly expenditures of A and B, respectively. The problem states that the monthly incomes of A and B are

About This Chapter: Ratio, Proportion, Indices, Logarithm

Paper

Paper 3: Quantitative Aptitude

Weightage

5-7 Marks

Key Topics

Ratio, Proportion, Indices, Logarithms

This chapter covers Ratio, Proportion, Indices, Logarithms and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 5-7 Marks weightage. Focus on understanding core concepts rather than memorizing.

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