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1. In an A.P. the two consecutive terms are (2n+3) and (2n+5). Find the common difference of the A.P.

2. For an A.P. the third and the fifth terms are given as 10 and 16 .What is the fourth term and the common difference?

3. If p, q, r, s, t are the terms of an A.P. with common difference -1 the relation between p and t is:

4. The weights of 11 students selected for a team are noted in ascending order and are in A. P. The lowest value is 45 Kg, and the middle value is 55 Kg. What is the difference between the two values placed consecutively ?

5. Is the sequence, whose general term is 5n2 + 2n + 3 an AP?

6. Find the next two terms of the A.P.:- -10, -6,-2…

7. If a + 1, 2a + 1, 4a - 1 are in A.P., then value of 'a' is:

11. Given an A.P. few of whose terms are x, y, 2, 4, 6, 8,.......... What must be the values of x and y?

12. If p - 1, p + 3, 3p - 1 are in A.P., then p is equal to:

13. Which of the following is an A.P with -10 as first term and 2 as the common difference?

14. Amit starts his exercise regime with 25 push ups on Monday. He plans to increase 5 push ups every following Monday. How many push ups will he be doing on the 3rd Monday since he started?

15. For what values of k can the following numbers form an A.P:2k-1,k+2,2k

18. If a- b, 0 and a + b are consecutive terms of an AP then

20. The angles of a triangle in A.P. the smallest being half of the greatest. So what are the angles ?