JEE Main 2013 — Sequences and Series Question with Solution
JEE Main 2013 (22 Apr Online)
Question
Given sum of the first terms of an A.P. is . Another A.P. is formed with the same first term and double of the common difference, the sum of terms of the new A.P. is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Given
Now, first term
second term
third term
Now, sum given in option (b) only has the same first term and difference between 2 nd and 1 st term is double also.
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This is a previous-year question from JEE Main 2013, covering the Sequences and Series chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.