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Friday, 9 October

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JEE Main 2025 · MathsMultiple choiceSingle correctMediumMulti-step

JEE Main 3 April 2025, Shift 2, Maths Q6

Question 6 of 75 in this shift, Maths question 6 of 25, Section A.

The sum

1 + \frac{1+3}{2!} + \frac{1+3+5}{3!} + \frac{1+3+5+7}{4!} + \ldots

upto

\infty

terms, is equal to

(1) $4e$
(2) $2e$ Official answer
(3) $6e$
(4) $3e$

Official answer

Option 2

NTA final key.

Chapter: Sequences and Series
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.