1.Find the 23rd term of the Arithmetic Progression -7, -3, 1, . . .*

88

60

4

81

2.Find the sum to infinity to the following Geometric Progression 9, -6, 4, . . .*

5

5 ?

4

5 ?

3.Determine the sequence of (4n - 6n) for 0 ? n ? 2, where n is a whole number.*

-6, -2, 2

0, -2, 4

0, 1, 2

1, 4, -6

4.If a = 10 and d = 3 for an Arithmetic Progression, find an expression for the nth term.*

10 + 3n

3 - 10n

10 + (n - 1)

7 + 3n

5.How many terms are there in the following Arithmetic Progression -10 - 7 - 4 - ... + 50?*

12

13

19

21

6.Which of the following series is a Geometric Progression?*

20 + 17 + 14 +.....+ 2

2 + 7 + 12 + ... + 77

1 + 1? + 1? + ... + 4

4 + 8 + 16 + ... + 256

7.What is the common ratio in the following series 160 + 80 + 40 + 20 + 10 + 5?*

2/3

40

2

1/2

8.In the sequence 4, 13, 28, 49, ... the general term is :*

3n + 1

5n + 3

n^2 + 1

3n^2 + 1

9.The fifth term of an AP. is 16 and the third term is 4. Find the find the first term.*

2

-8

12

6

10.The first term of a geometric progression is 10 and the fourth term is 270. Find the common ratio.*

-3

10

3

9

11.The third term of the A. P is 5 and the eight term is 10. Find the fifth term.*

7

5

3

1

12.Which of the following is an Arithmetic Progression?*

2, 4, 8 ....

1, 3/2, 2 ....

6, 3, 1.5 ...

2, 7, 10 ....

13.Which of the following is NOT an Arithmetic Progression?*

7, 37, 67, 97......

10, 5, 0, -5....

5, 9, 13, 17....

3, 1, ?, 1/9

14.Identify , ? , 1/16 ...... as an example of which sequence?*

Arithmetic

Geometric

Harmonic

None of the above

15. 3, 5, 7 ..... 21 is an example of:*

An infinite sequence

An arithmetic progression

A geometric progression

An infinite series

16.Find the sum of the first 7 terms of the geometric sequence with first term 5 and common ratio 2.*

63

128

135

635

17.Find the 7th term of the following G.P. 10 + 25 + ...*

100

108

900

2441

18.What are the first four terms of a sequence whose general term is given by Tn = 2^n.*

4, 8, 16, 32

1, 4, 9, 16

1, 2, 4, 8

2, 4, 8, 16

19.

+ y +Z 2x -y 3x +2y - ZEvaluate 2' Mi 1=-1 n + 2