5th term of a G.P is 2, then the product of first 9 terms is _________.
256
128
512
None of these
0
1
-1
10
If a and b are two dfferent positive real numbers, then which of the following relations is true ?
2 √ab > ( a + b )
2 √ab < ( a + b )
2 √ab = ( a + b )
The A. M of two numbers is 34 and G.M is 16, the numbers are ________.
2 and 64
64 and 3
64 and 4
If nth term of the G.P 5, -5/2, 5/4, -5/8, .... is , then the value of n is.
4
9
11
The nth term of the sequence 3, 6, 9, -----is.
3n + 1
3n
3n + 2
In an A.P of 81 terms, the 41th term is 10.
41 × 81
10 × 81
10 × 41
10 ×41/2
The two geometric means between 1 and 64 are.
1 and 64
8 and 16
4 and 16
3 and 16
The AM between pth and qth terms of an A. P is equal to the A. M between 8th and 5th terms of the A.P. Then p + q =
r + s
r + s + 1
Let a, b, c be A.P then 1/c, b/ac, 1/a are in ________.
G.P
A . P
H. P
