If the nth term of an AP is 6n - 1. Then its (n + 1)th term is __________
6n + 4
6n + 5
6n - 4
6n - 5
Given an = (n+1)2/n then a7 is
64
67
49/8
64/7
The nth term of G.P 5, 25, 125 is
5n
5n-1
5n+1
n5
The sum to the first 25 terms of the series 1 + 2 + 3......... is
305
325
315
335
Sum of the sequence 9, 99, 999, 9999 up to n terms is
(10n -1) - n
9/10 (10n - 1) - n
10/9 (10n - 1) - n
None of these
1 + 2 + 3 +........30 =
465
930
900
500
If G is geometric mean of numbers a and b then G =
√ab
±√ab
ab
a/b
The 10th term of an A.P is 52 and 16th terms is 82. Then the 32nd term is
162
165
173
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
The A.M between pth and qth terms of an A.P is equal to the AM 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
