Sequence and SeriesPYQ Nov 18Question 1770 of 142
All Questions

The sum of the series −8,−6,−4,.........n\displaystyle -8,-6,-4,.........n terms is 52\displaystyle 52. The number of terms n\displaystyle n is

Options

A11\displaystyle 11
B12\displaystyle 12
C13\displaystyle 13
D10\displaystyle 10
For any discrepancies in this question, email contact@cadada.in

Correct Answer

✅ Option c — 13\displaystyle 13

All Options:

  • A11\displaystyle 11
  • B12\displaystyle 12
  • C13\displaystyle 13
  • D10\displaystyle 10

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.

More Questions from Sequence and Series

Find the sum of n terms of the A.P., whose nth term is 5n+1\displaystyle 5n + 1

The sum of first three terms of a G.P. is 212\displaystyle \frac{21}{2} and their product is 27. Which of the following is not a term of the G.P., if the numbers are positive?

Insert 4 numbers between 2 and 22 such that the resulting sequence is an Arithmetic Progression (A.P.).

Find the sum of series 1+12+14+…\displaystyle 1 + \frac{1}{2} + \frac{1}{4} + \dots upto 6 terms.

If the sum of 'n\displaystyle n' terms of an AP (Arithmetic Progression) is 2n2\displaystyle 2n^2, the fifth term is ____.

The sum of first n\displaystyle n terms an AP is 3n2+5n\displaystyle 3n^2+5n. The series is:

Ready to Master Sequence and Series?

Practice all 142 questions with instant feedback, earn XP, track your streaks, and ace your CA Foundation exam.

Start Practicing — It's Free