A topic you 'somewhat know' is a topic you don't know yet. Be honest about your weak areas.

Arithmetic Progressions — quick quiz

5 NSEJS-pattern questions on Arithmetic Progressions. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 5

Easy

Find the sum of the first 20 terms of the arithmetic progression: 3, 7, 11, 15, ...