Sequence and SeriesMTP Oct 21Question 1849 of 128
All Questions

The series $1+10^{-1}+10^{-2}+\dots$ to $\infty$ is

Options

A$9/10$
B$1/10$
C$10/9$
Dnone of these
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Correct Answer

Option b$1/10$

All Options:

  • A$9/10$
  • B$1/10$
  • C$10/9$
  • Dnone of these

About This Chapter: Sequence and Series

Paper

Paper 3: Quantitative Aptitude

Weightage

4-6 Marks

Key Topics

Arithmetic & Geometric Progressions

This chapter covers Arithmetic Progressions (AP) and Geometric Progressions (GP). Students learn how to find the nth term, sum of n terms, arithmetic/geometric means, and sum to infinity of a GP.

View Official ICAI Syllabus

Exam Strategy Tip

For complex 'sum of series' questions, a great hack is to substitute n = 1 and n = 2 into the question and the options to see which one matches, completely bypassing the formula.

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