timesthethirdtThe third term of an A.P. is 7 and the seventh term exce – InterviewSolution

1.	timesthethirdtThe third term of an A.P. is 7 and the seventh term exceeds threeby 2. Find the first term, the common difference and the sum of first 20 termsdifference is , now martyermst iorm is 50The sum of all these terms is 421:1, . I
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