The A.M between pth and qth terms of an A.P is equal to the A.M between rth and sth terms of the A.P. Then p + q =
r + s
r - s/ r + s
r + s/ r - s
r + s = 1
The nthe term of the sequence 1/2, 1/6, 1/12, - - - - - is
The nth term of the sequence 3, 6, 9, -----is.
3n + 1
3n
3n + 2
None of these
If log 2, log (2n -1 ) and log (2n + 3 ) are in AP, then n is equal to
5/2
log 25
log 35
3/2
5th term of a G.P is 2, then the product of first 9 terms is _________.
256
128
512
If be the AM of a and b, then n is equal to _________.
1
-1
0
If a, b, c are in A.P, then 3a, 3b, 3c are in.
A.P
G.P
H.P
If progressions 3, 10, 17, .. . . . . and 63,65, 67, . . . . . . are such that their nth terms are equal, then n is equal to :
13
15
9
8
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 + 1