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Questions  >>  Olympiad-Math  >>  Class 10
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Q)

The sum of $n$ terms of an A.P. is $2n^2+5n$ then $164$ belongs to ______ term.

$\begin{array}{1 1}(A) \; 26^{th}\\(B)\;27^{th} \\(C)\;28^{th} \\(D)\;\text{None of the above} \end{array}$

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