Sequence and SeriesPYQ Jul 21Question 1761 of 128
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The number of terms of the series: $5+7+9+...$ must be taken so that the sum may be $480$.

Options

A$15$
B$10$
C$25$
D$20$
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Correct Answer

Option a$15$

All Options:

  • A$15$
  • B$10$
  • C$25$
  • D$20$

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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