Sequences

Choose answer within a time limit

1. Which term of the series   -3,1,5,...is 53 ?
12
13
14
15

2. The 20th term of the A.P 1,-2,-5,  is
-57
-56
-62
-65

3. The middle term in the A.P 4,9,14, .... with 9 term is 
29
34
24
19

4.  The sum of 6 terms of the A.P  1,3,5,7,...is
25
49
36
30

5. The sum of the first 7 odd numbers is 
6^2
48
49
(7+1)^2

6.  For the G.P  5,10,20,  ..... what is the 8th term
360
320
400
380

7. Whic term of the sequence A.P : 13,15,17......is 71?
28
21
30
49

8. Find the middle of the A.P : 3,5,7, .....71
17
27
47
37

9.  The 5th term of an A.P is 27 and the 8th term is 12 . Determine the A.P
27,22,17,
47,42,37,...
22,17,12,..
57,52,47,..

10.  The number of the term in the A.P  7, 13, 19, ,...97 is 
97
17
16
15