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Qn #1596
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The sum of $n$ terms of an arithmetic series is 216. The value of the first term is $n$ and the value of the $n^{th}$ term is $2n$. The common difference, $d$ is.
A.
$1$
B.
$\frac{2}{3}$
C.
$\frac{3}{2}$
D.
$\frac{12}{11}$
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❓ Question: The sum of $n$ terms of an arithmetic series is 21... | TANCET Group Studies | Tancet Group Studies