1 |
Zero cannot be a term of: |
A.P and G.P
G.P and H.P
A.P and H.P
only H.P
|
2 |
If S is the H.M between 2 and b then b = : |
-10
10
7
5
|
3 |
The reciprocal of the terms of A.P. form: |
A.P
G.P
H.P
none of these
|
4 |
A sequence of numbers whose reciprocal form an arithmetic sequence, is known as: |
arithmetic sequence
geometricsequence
harmonicsequence
none of these
|
5 |
The series 2 + 2 + 2 ..... is: |
divergent
convergent
oscillatory
none of these
|
6 |
A geometric series is convergent only if: |
| r | > 1
| r | < 1
| r | = 1
none of these
|
7 |
The product of three G.Ms between 1 and 16 is: |
32
64
128
16
|
8 |
If there are six G.Ms between 3 and 284 then G4 = |
24
48
12
6
|
9 |
G.M between -2i and 8i is: |
4 or -4
4i or -4i
2 or -2
none
|
10 |
The series 3 + 33 + 333 + ...... is: |
A.P
G.P
H.P
none of these
|
11 |
Reciprocals of the terms of the geometric sequence form: |
A.P
G.P
H.P
none
|
12 |
Which number cannot be a term of a geometric sequence ? |
0
1
-1
r
|
13 |
7th term of G.P 3, 6, 12 ..... is: |
512
192
48
96
|
14 |
|
A.P
G.P
H.P
none
|
15 |
A clock strikes once when its hour hand is at one, twice when it is at two, and so on. How many times does the clock strike in ten hours ? |
55
78
66
46
|
16 |
Sum of integral multiples of there between 4 and 22 is: |
81
75
211
none
|
17 |
Sum of all positive integral multiples of 3 less than 100 is: |
950
760
1230
875
|
18 |
Sum of all odd numbers between 100 and 200 is: |
6200
6500
3750
7500
|
19 |
The sum of 10 A.Ms between 3 and 47 is: |
50
250
100
500
|
20 |
A.M between 1 + x - x2 and 1 + x + x2 is: |
1 + x<sup>2</sup>
1 + x
2
none
|