1 |
G.M between -2i and 8i is: |
4 or -4
4i or -4i
2 or -2
none
|
2 |
The series 3 + 33 + 333 + ...... is: |
A.P
G.P
H.P
none of these
|
3 |
Reciprocals of the terms of the geometric sequence form: |
A.P
G.P
H.P
none
|
4 |
Which number cannot be a term of a geometric sequence ? |
0
1
-1
r
|
5 |
7th term of G.P 3, 6, 12 ..... is: |
512
192
48
96
|
6 |
|
A.P
G.P
H.P
none
|
7 |
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
|
8 |
Sum of integral multiples of there between 4 and 22 is: |
81
75
211
none
|
9 |
Sum of all positive integral multiples of 3 less than 100 is: |
950
760
1230
875
|
10 |
Sum of all odd numbers between 100 and 200 is: |
6200
6500
3750
7500
|
11 |
The sum of 10 A.Ms between 3 and 47 is: |
50
250
100
500
|
12 |
A.M between 1 + x - x2 and 1 + x + x2 is: |
1 + x<sup>2</sup>
1 + x
2
none
|
13 |
A.M between x - 3 & x + 5 is __________: |
x + 1
x - 1
2x + 2
none
|
14 |
In an A.P.a3 = 12 and a7 = 32 then d = : |
5
3
7
9
|
15 |
What is the common difference of the sequence 11, 5, -1, ......... ? |
6
-6
none of the foregoing numbers
|
16 |
If an-3 = 2n - 5 then an = |
2n-1
2n+1
2n+3
none
|
17 |
If an-1 = 2n - 3 then an+1 = |
2n - 1
2n + 1
2n + 3
none
|
18 |
If an = (n + 1) an-1, a1 = 1, second term of the sequence is: |
3
1
2
4
|
19 |
What is the general term of the geometric sequence -1, 1, -1, 1 ....... ? |
(-1)<sup>n</sup>
(1)<sup>n</sup>
(-1)<sup>n-1</sup>
none of these
|
20 |
What is the general term of the sequence 2, 4, 6, 8, ........... ? |
2n
n + 1
2n<sup>2</sup>
none of these
|