NDA Maths | Sequence & Series PYQ | Sum of First 140 Terms Solved | NDA & NA Exam Solution

Описание: In this video, we solve a Previous Year NDA & NA (II) 2023 Maths Question from the topic Sequences and Series:

👉 If the n^"th " term of a sequence is (2n+5)/7, then what is the sum of its first 140 terms?


(a) 2840 (b) 2780 (c) 2920 (d) 5700


This question is very important for NDA, CDS, UPSC, JEE, Class 11 Maths and other competitive exams.
We will solve it step by step with tricks and shortcuts so you can revise fast and score better.

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