Find the sum of first twenty-five terms of A.P. series whose $n^{th}$ term is $\left(n+\frac{2}{5}\right)$
Options
A105
B115
C125
D135
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Sequence and SeriesMTP Oct 21Question 1800 of 128
All Questions Correct Answer
✅ Option b — 115
All Options:
- A105
- B115
- C125
- D135
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 SyllabusExam 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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