An arithmetic progression has first term 5 and twentieth term 62.

MATHEMATICS · Multi-part · CBSE · Mathematics · Arithmetic Progressions · Arithmetic Progressions

Problem

An arithmetic progression has first term 5 and twentieth term 62. (i) Find the common difference of the progression. (ii) Hence obtain the sum of the first 20 terms.

Related theory

Arithmetic Progressions
Sequences and series
Algebra
Sum of first n terms of an AP

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