1 

 A. A.P
 B. G.P
 C. H.P
 D. none

2 
What is called the difference between two consecutive terms of an arithmetic sequence ? 
 A. common ratio
 B. common difference
 C. common element
 D. none of these

3 
If a<sub>n3</sub> = 2n  5 then a<sub>n</sub> = 
 A. 2n1
 B. 2n+1
 C. 2n+3
 D. none

4 
The next term of the sequence1, 2, 12, 40, .........is: 
 A. 112
 B. 212
 C. 144
 D. none

5 
Reciprocals of the terms of the geometric sequence form: 
 A. A.P
 B. G.P
 C. H.P
 D. none

6 
Arithmetic series is only possible if: 
 A. d = 1
 B. d < 1
 C. d > 1
 D. none

7 
A function whose domain is the set of natural numbers is called the: 
 A. series
 B. sequence
 C. means
 D. convergent

8 
A sequence of numbers whose reciprocal form an arithmetic sequence, is known as: 
 A. arithmetic sequence
 B. geometricsequence
 C. harmonicsequence
 D. none of these

9 
The series 3 + 33 + 333 + ...... is: 
 A. A.P
 B. G.P
 C. H.P
 D. none of these

10 
Fifth term of the sequence 2, 6, 11, 17. 
