The second term of a G.P. is 18 and the fifth term is 486. Find the first term
3
6
2
4
26
27
28
None of these
Find the value of x for which x+9, x-6, 4 are the first three terms of a G.P.
1,15
0,16
2,4
3,16
If in a G.P. consisting of positive terms, each term equals the sum of the next two terms. Then the common ratio of this progression equals
If a,x,b are in A.P., then x =
a+b
The A.M. between 5 and 22 is
13
14
13.5
14.5
The sum of 10 terms of 5+8+11+ ----------
165
170
185
Find the value of k so that 8k+4, 6k-2 and 2k+7 will form an A.P.
7
7 1/2
6 1/2
Sum of infinite geometric series,
7th term of 2,4,8, -------------------- is
120
118
125
128
