Progression (Sequence and Series)Hard
Question
If fourth term of an A.P. is thrice its first term and seventh term − 2 (third term) = 1, then its common difference is-
Options
A.1
B.2
C.- 2
D.3
More Progression (Sequence and Series) Questions
Let a1, a2, a3,..... be in harmonic progression with a1 = 5 and a20 = 25. The least positive integer n forwhich an...If x1, x2, x3 as well as y1, y2, y3 are in GP with the same common ratio, then the points (x1, y1), (x2, y2) and (x3, y3...The sum of n terms of the series + ......... is :-...If a, b, c, d are in G.P. then a + b, b + c, c + d are in-...If x, y, z are in A.P. and A.M. of x and y is a and that to y and z is b, then A.M. of a and b is -...