JEE Main 2010 — Sequences And Series Question with Solution
From: AIEEE 2010
Question
A person is to count 4500 currency notes. Let denote the number of notes he counts in the minute. If = = ....= = 150 and , ,.... are in an AP with common difference - 2, then the time taken by him to count all notes is
Choose an option
Show full solutionCorrect option: A
Correct answer
A34 minutes
Step-by-step explanation
Till th minute number of counted notes
But is not possible
total time minutes.
But is not possible
total time minutes.
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This is a previous-year question from JEE Main 2010, 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.