Progression (Sequence and Series)Hard
Question
If sum of A.M. and H.M. between two positive numbers is 25 and their GM is 12, then sum of numbers is-
Options
A.9
B.18
C.32
D.18 or 32
More Progression (Sequence and Series) Questions
Three numbers a,b, 12 are in G.P. and a, b,9 are in A.P., then a and b are -...If a, b, c are in GP, then the equations ax2 + 2bx + c = 0 and dx2 + 2bx + f = 0 have a common root, if, are in...If the sum to n terms of a series be 3(2n −1), then it is-...If the sum of the series = S, for |r| < 1 then the sum of the series is :-...The sum 1 + .... (upto ∞) is finite if −...