Ratio, Proportion, Indices, LogarithmMCQPYQ Nov. 20Question 935 of 305
All Questions

If logx3=16\displaystyle \log_x \sqrt{3} = \frac{1}{6} find the value of a\displaystyle a:

Options

A9
B81
C27
D3
For any discrepancies in this question, email contact@cadada.in

Correct Answer

Option c27

All Options:

  • A9
  • B81
  • C27
  • D3

Ad

Detailed Solution & Explanation

We are given the logarithmic equation:
logx3=16\log_x \sqrt{3} = \frac{1}{6}

Let us write this equation in its equivalent exponential form:
x1/6=3x^{1/6} = \sqrt{3}

We know that 3=31/2\displaystyle \sqrt{3} = 3^{1/2}. Substituting this into the equation:
x1/6=31/2x^{1/6} = 3^{1/2}

To solve for x\displaystyle x (referred to as a\displaystyle a in the textbook typo), let us raise both sides of the equation to the power of 6\displaystyle 6:
(x1/6)6=(31/2)6\left( x^{1/6} \right)^6 = \left( 3^{1/2} \right)^6
x=36/2x = 3^{6/2}
x=33=27x = 3^3 = 27

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

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.

More Questions from Ratio, Proportion, Indices, Logarithm

Ready to Master Ratio, Proportion, Indices, Logarithm?

Practice all 305 questions with instant feedback, earn XP, track your streaks, and ace your CA Foundation exam.

Start Practicing — It's Free