JEE Main 2013MathematicsSequences And SeriesSummation Of SeriesmediumMCQ

JEE Main 2013Sequences And Series Question with Solution

From: JEE Main 2013 (Offline)

Question

The sum of first 20 terms of the sequence 0.7, 0.77, 0.777,........,is

Choose an option

Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

Given sequence can be written as

up to terms

up to terms ]

Multiply and divide by

up to terms ]

up to terms ]





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About this question

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.