Ratio, Proportion, Indices, LogarithmMCQMTP May 19Question 816 of 302
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The sub-triplicate ratio of $8:27$

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

✅ Option b — $24:81$

All Options:

  • A$27:8$
  • B$24:81$
  • C$2:3$
  • Dnone of these

Detailed Solution & Explanation

The sub-triplicate ratio of a ratio $a : b$ is defined as a3:b3\displaystyle a3\displaystyle \sqrt[3]{a} : b3\displaystyle \sqrt[3]{b}.
For the ratio $8 : 27$, the sub-triplicate ratio is:
Sub-triplicate Ratio=83:273=2:3\displaystyle \text{Sub-triplicate Ratio} = \sqrt[3]{8} : 273=2\displaystyle \sqrt[3]{27} = 2 : 3

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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