Offline paper
Mathematics · 2014
JEE Main 2014 · 2014-04-06 Offline · Q68
If (10)^9+2(11)^1(10)^8+3(11)^2(10)^7+… +10(11)^9= k (10)^9, then k is equal to:
If $\displaystyle (10)^9+2(11)^1(10)^8+3(11)^2(10)^7+\ldots$ $\displaystyle +10(11)^9=\mathrm{k}(10)^9$, then k is equal to :
Official answer
(1)
$\displaystyle 100$
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JEE Main 2014 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.