Let \( S_{n} \) denote sum of first \( n \)-terms of arithmetic \( \mathrm{P} \) progression, su...

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Let \( S_{n} \) denote sum of first \( n \)-terms of arithmetic
\( \mathrm{P} \)
progression, such that \( S_{10}=530 \) and \( S_{5}=140 \) then
W
find the value of \( S_{20}-S_{6} \).
(1) 1852
(2) 1862
(3) 1872
(4) 1882
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