Sum of infinite geometric series,
Find the value of k so that 8k+4, 6k-2 and 2k+7 will form an A.P.
6
7
7 1/2
6 1/2
The formula for nth term of an arithmetic progression is Tn =
a+nd
a+(n-1)d
2a+(n-1)d
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
The A.M. between 5 and 22 is
13
14
13.5
14.5
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
320
322
324
326
The sum of 10 terms of 5+8+11+ ----------
165
170
185
If three numbers a,b,c form a G.P., then
b2 = ac
b=a+c
b2 = a+c
