In an AP, the first term is 8 and the last term is 20. If the sum of the first terms…

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

Problem

In an AP, the first term is 8 and the last term is 20. If the sum of the first

n

terms is 168, calculate: (i) the number of terms

n

, (ii) the common difference

d