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
The 10th common term between the series 3+7+11+................ and 1+6+11+----- is
191
193
211
None of these.
nth term of the following sequence ak, ak3, ak5.......is
akn
ak2n-1
ak2n
akn+1
How many terms are in the sequence 5, 8, 11..........47?
47
15
16
20
If tn denotes the nth term of the series 2+3+6+11+18----------then t50 is
492-1
492
502+1
492+2
Common ratio of the series 1/4 + 1/2 + 1.........is 256?
10th term
11th term
12th term
9th term
If -2/7, x, -7/2 are in G.P, then x =
1
-1
± 1
None of these
The sequence an = 2n + 1 is an A.P Then the common difference is
5
7
3
2
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
If 2/3, k, 5/8k are in A.P, then k =
33/16
16/3
17/33
16/33
