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JEEMAIN and NEET
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Mathematics
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Class11
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Sequence and Series
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Given an AP, if the sum of first 5 terms is 175 and the sum of first 10 terms is 700, find the sum of the first 7 terms.
$\begin{array}{1 1} 14 \\ 7 \\ 343 \\ 49 \end{array}$
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