number of terms aIf the ratio of the sum of tof their 9th terms. CBSE2 – InterviewSolution

1.	number of terms aIf the ratio of the sum of tof their 9th terms. CBSE2017-4Mnd the common difference of the A.P. CBSE2017-3Mhe first n terms of two A.Ps is (7n + 1): (4n +27), then find the rationnd the seventh term (az) is 4, then find the first
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