If …, then k is equal to :

Sequences and Series

JEE Main 2014 · Session, Shift 1 · Q5291

MathematicsMedium178×since 2002Q5291

{(10)^9} + 2{(11)^1}\,({10^8}) + 3{(11)^2}\,{(10)^7} + ......... + 10{(11)^9} = k{(10)^9},

, then k is equal to :

JEE Main 2014 · Session, Shift 1 · Q5291

MathematicsMedium178×since 2002Q5291

{(10)^9} + 2{(11)^1}\,({10^8}) + 3{(11)^2}\,{(10)^7} + ......... + 10{(11)^9} = k{(10)^9},

, then k is equal to :