The sequence 20, 15, 10, 5, … continues in the same pattern

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

Problem

The sequence 20, 15, 10, 5, … continues in the same pattern. Answer the following: (i) Which term of the sequence is −25? (ii) How many terms of the sequence are positive?

Related theory

Arithmetic Progressions
Functions
Sequences and Series
Algebra
nth term of an AP

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