the sum of nterms of two ap are in the ratio(3n+8):(7n+15).find the ratio of their 12th terms

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Abhiramkt Abhifloopzz
Jan. 26, 2019, 8:34 p.m.

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Abhiramkt Abhifloopzz
Jan. 26, 2019, 8:35 p.m.
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