15. यदि दो समांतर श्रेढ़ियों के प्रथम n पदों के योगों में (7n + 1) : (4n + 27) का अनुपात है, तो
उनके m वें पदों में अनुपात ज्ञात कीजिए।
If the ratio of the sum of first n terms of two A.P's is (7n+1): (4n+27), find
the ratio of their m terms.
th
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sorry I don't know the answer because I don't know hindi
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