Sequences – Arithmetic Progression (AP) Revision & Extensions

Grade 11 Maths — Sequences – Arithmetic Progression (AP) Revision & Extensions: 25 practice questions with instant scoring and explanations.

1. An arithmetic progression is a sequence where:
2. The common difference of AP {2, 5, 8, 11, ...} is:
3. The nth term of AP is given by:
4. The 10th term of AP {3, 7, 11, ...} is:
5. The 5th term of AP {1, 4, 7, ...} is:
6. If a = 2 and d = 3, the 7th term of AP is:
7. Which term of AP {5, 10, 15, ...} is 100?
8. The sum of first n terms of AP is:
9. The sum of first 20 terms of AP {1, 3, 5, ...} is:
10. The sum of first 10 terms of AP {2, 5, 8, ...} is:
11. If a = 5, d = 2, find sum of first 15 terms:
12. The AP with first term 1 and common difference 2 has 10th term as:
13. The 15th term of AP {3, 8, 13, ...} is:
14. Is {2, 4, 6, 8, ...} an AP?
15. Is {1, 3, 6, 10, ...} an AP?
16. Three numbers in AP are x-d, x, x+d. Their sum is:
17. If three terms of AP are in ratio 1:2:3 with first term 'a', then second term is:
18. The 50th term of AP {10, 20, 30, ...} is:
19. Sum of AP {1, 2, 3, ..., 100} is:
20. The sum of first n natural numbers is:
21. The sum of first n odd numbers is:
22. The sum of first 12 odd numbers is:
23. If S_n = n^2, then the 5th term is:
24. In an AP, if S_n = 3n^2 + 2n, then first term a is:
25. Three consecutive terms of AP with middle term 'a' are: