nth term of the following sequence ak, ak3, ak5.......is
akn
ak2n-1
ak2n
akn+1
The sequence an = 2n + 1 is an A.P Then the common difference is
5
7
3
2
9th term of the sequence 3, 6, 12, 24........
512
1536
768
867
How many terms are in the sequence 5, 8, 11..........47?
47
15
16
20
If 2x + 1, x2 + x + 1 and 3x2 - 3x + 3 are consecutive terms of an A.P then x =
1, 2
2, 3
3, 4
5, 6
If -2/7, x, -7/2 are in G.P, then x =
1
-1
± 1
None of these
If in A.P Sn = Pn2 and Sm= pm2 where S denotes the sum of r terms of the A.P then Sp is equal to
1/2 p3
mnp
p3
(m+n)p2
The 10th common term between the series 3+7+11+................ and 1+6+11+----- is
191
193
211
None of these.
The sum (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
If the sum of 3 numbers in A.P is 24 and their product is 440, then the numbers are
5, 8, 11
6, 9, 12
7, 10, 13
4, 8, 12