alleryThe nth term of a progression with first term a and common difference d is:
Aa plus (n minus 1) d
Ba plus (n plus 1) d
Ca minus (n minus 1) d
Da times (n minus 1) d
Answer & Solution
Correct answer: A. a plus (n minus 1) d
1. Reaching the nth term takes n minus 1 steps.
2. Each step adds d.
3. The nth term is a plus (n minus 1) d.
_Source: syllabus Mathematics, Chapter 5, Arithmetic Progressions._
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