d the sum of the series 3 + 7.....to 10 terms – InterviewSolution

1.	d the sum of the series 3 + 7.....to 10 terms
Answer» a = 3 d = 4 Sum of 10 terms = 10/2(2×3+9×4) = 5(6+36) = 5*42 = 210

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