Question

5. For what value of p, are 2p- 1, 7 and 3 p three consecutive terms of an A.P.? CBSE2009-
1M
6.
If Sn, the sum of first n terms of an A.P. is given by S. = 3n2 - 4n then find its
nth term. CBSE2009-2M
7. The sum of 4th and 8th terms of an A.P. is 24 and sum of 6th and 10th terms
is 44. Find A.P. CBSE2009-3M
8.
If a, 2 are three consecutive terms of an A.P., then find the value 5 of a. CBSE2009-1M
5
9. Which term of the A.P. . 3, 15, 27, 39 ... will be 120 more than its 21st term? CBSE2009-2M
10. The sum of first six terms of an arithmetic progression is 42. The ratio of its 10th term to its
30th term is 1:3. Calculate the first and the thirteenth term of the A.P. CBSE2009-3M
11. If the sum of first p terms of an A.P., is ap+bp, find its common difference.
CBSE2010-1M
12. In an A.P., the first term is 2, the last term is 29 and sum of terms is 155. Find the common
difference of A.P. CBSE2010-2M
1.3. In an A.P., the sum of first ten terms is - 150 and the sum of its next ten terms is -550. Find
A.P. CBSE2010-3M
14. If the first m terms of an A.P. is 2m2+3m, then what is its second term? CBSE2010-1M
15. In an A.P., the first term is -4, the last term is 29 and the sum of all its terms is 150. Find its
common difference. CBSE2010-2M
16. The sum of first sixteen terms of an A.P. is 112 and the sum of its next fourteen terms is
518. Find A.P. CBSE2010-3M
17. In an AP, if d=-2, n=5 and an=0. Find the value of a. CBSE2011-1M

Answer 1

Answer:

Step-by-step explanation: