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
None of these
If a, b, c are in A.P, then 3a, 3b, 3c are in.
A.P
G.P
H.P
The number of terms of the AP 3, 7, 11, 15, 15, - - - - - - to be taken so that the sum is 406 is
5
10
12
14
The nth term of the sequence 3, 6, 9, -----is.
3n + 1
3n
3n + 2
If nth term of the G.P 5, -5/2, 5/4, -5/8, .... is , then the value of n is.
4
9
11
If a, b, c, d, e, f are in AP, then e - c is equal to _____.
2 ( c - a )
2 ( f - d )
2 (d - c )
d - c
0
1
-1
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 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
In an A.P of 81 terms, the 41th term is 10.
41 × 81
10 × 81
10 × 41
10 ×41/2