If 2/3, k, 5/8k are in A.P, then k =

9^th term of the sequence 3, 6, 12, 24........

If in A.P S_n = Pn² and S_m= pm²  where S denotes the sum of r terms of the A.P then S_p is equal to

n^th term of the following sequence ak, ak³, ak⁵.......is

Next term in the series 3/16 + 1/18 + 1/12 +.........is

Common ratio of G.P a^m-n, a^m, a^m+n.........is

Which term of the A.P -1, 3, 7, 11........is 91?

If the sum of 3 numbers in A.P is 24 and their product is 440, then the numbers are

If -2/7, x, -7/2 are in G.P, then x =

1 + 2 + 3 +........30 =