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Sequences-and-Series

The sum of n terms of two arithmetic progressions are in ratio (2n + 3):(7n + 5). Find ratio of ir 9th terms.


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This Chapter Sequences-and-Series consists of the following topics

If general term of an A.P. is 3n then find common difference.

The sum of n terms of two arithmetic progressions are in ratio (2n + 3):(7n + 5). Find ratio of ir 9th terms.

If two numbers are 2 and 6 then find their arithmetic mean.

The sum of n terms of two arithmetic progressions are in the ratio (2n + 3):(7n + 5). Find the ratio of their 9th terms.

Sequences and Series

Objective-Mathematics