1. The common difference of the AP 1/p, (1 -p) /p ,(1 - 2p)/p is..
(a) p. (b) -p. (c) -1 (d) 1
2. If the nth term of an AP is (2n + 1) then the sum of its first three terms
is..
(a) 6n + 3. (b) 15. (c) 12. (d) 21
3. The sum of first n terms of an AP is (3n² + 6n) The common difference of the AP is..
(a) 6. (b) 9. (c) 15. (d)-3
4. The sum of first n terms of an AP is (5n-n²). The nth term of the AP is..
(a) (5 - 2n) (b) (6 - 2n) (c) (2n - 5) (d) (2n - 6)
5. The sum of first n terms of an AP is (4n² + 2n) . The nth term of this AP.is..
(a) (6n - 2) (b) (7n - 3) (c) (8n - 2) (d) (8n + 2)
6. The 7th term of an AP is -1 and its 16th term is 17. The nth term of the AP is..
(a) (3n + 8) (b) (4n - 7) (c) (15 - 2n) (d) (2n - 15)
7. The 5th term of an AP is -3 and its common difference is. - 4. The sum of its first 10 terms is…
(a) 50 (b) -50. (c) 30. (d) -30
8. The 5th term of an AP is 20 and the sum of its 7th and 11th terms is 64 The common difference of the AP is..
(a) 4. (b) 5. (c) 3 (d) 2
9. The 13th term of an AP' is 4 times its 3rd term. It its 5th term is 16 then the sum of its first ten terms is .
(a) 150 (b) 175 (c) 160 (d) 135
10. An AP 5, 12, 19….., has 50 terms. Its last term is..(
a) 343. (b) 353. (c) 348 (d) 362
11. The sum of first 20 odd natural numbers is…..
(a)100. (b) 210. (c) 400. (d) 420
12. The sum of first 40 positive integers divisible by 6 is…
(a) 2460. (b) 3640. (c) 4920. (d) 4860
13. How many two-digit numbers are divisible by 3?
(a) 25. (b) 30. (c) 32. (d) 36
14. How many three-digit numbers are divisible by 97
(a) 86. (b) 90. (c) 9% (d) 100
15. If a, denotes the nth term of the AP 3,8, 13, 18, then what is the value
(b) 36. (c) 50. (d) 56
16. Which term of the AP 72, 63,54, is 0?
(b) 9th. (c) 10th. (d) 11th
17: Which term of the AP 25, 20, 15, is the first negative term?
(a) 10th. (b) 9th. (c) 8th. (d) 7th
18. Which term of the AP 21, 42, 63, 84, is 210?
(a) 9th. (b) 10th. (c) 11th. (d) 12th
19. What is 20th term from the end of the AP 3, 8, 13………..,2537
(a) 163. (b) 158. (c) 153. (d) 148
20. The sum of first 16 terms of the AP 10, 6, 2... is
(a) 320. (b)-320. (C)-352. (d)-400
21. How many terms of the AP 3,7, 11, 15, will make the sum 4067
(a) 10. (b) 12. (c) 14. (d) 20
22. The 2nd term of an AP is 13 and its 5th term is 25. What is its 17th term?
(a) 69. (b) 73. (c) 77. (d) 81
23. The 17th term of an Al exceeds its 10th term by 21. The common
difference of the AP is
(a) 3. (b) 2. (c)-3. (d)-2
24. Which term of the AP :4,9,14,19, ....... is 109?
(A) 14th. (B) 18th. (C) 22nd. (D) 16th
25. The sum of the arithmetic series 51 + 52 + 53 +.......+100 is:
(A) 3775. (B) 4025. (C) 4275. (D) 5050
