The sum of (m + n)th term and (m - n)th terms of an A.P is equal to twice the
nthterm
mthterm
(m - 1)term
n + 1 term
The sequence an = 3n - 2 is an A.P, then a and d are
1, 4
4, 7
1, 3
7, 10
If the third term of a G.P is 10, then the product of first 5 terms is
101
50
510
105
How many terms of the G.P 3, 32, 33,...... are needed to give the sum 120?
4
5
6
18
If 2/3, k, 5/8k are in A.P, then k =
33/16
16/3
17/33
16/33
The number of terms of the AP 3, 7, 11, 15, .......... to be taken so that the sum is 406 is.
10
12
14
The Arithmetic mean of (p + q) and (p - q) is
p
q
2p
2q
In a G.P if the (p + q)th term is m and (p - q)th term is n then its pth term is
0
m * n
√mn
1/2 (m + n)
If the sum of n terms of an A.P is (Pn + qn2) where p and q are constants. Then the common difference is
2 + q
2/q
2 - q
If nth term of the G.P 5, -5/2, 5/4, -5/8, .... is , then the value of n is.
9
11
