Find a G.P. for which sum of the first two terms is -4 and the fifth term is 4 times the third term.

If the sum of the first 14 terms of an AP is 1050 and its first term is 10, find the 20th term.

The first term of an A.P. is -4 and 10th term is 14. Determine the 30th term.

In a G.P., the third term is 24 and the 6th term is 192. Find the 10th term .

In a G.P., the third term is 24 and the 6th term is 192. Find the 8th term .

Find S_oo of G.P. whose first term is 28 and the fourth term is 4/49 .

Find the sum of first n terms of an A.P. whose nth term is 3n+1.

If 3rd term of a G.P. is 324 and 7th term is 64, then find the 10th term.

In an A.P., of which a is the first term, if the sum of the first p terms is zero, show that the sum of the next q terms is (-a(p +q)q)/(p-1) .

If the 10th term of a G.P. is 9 and 4th term is 4, then its 7th term is :

If the 12th term of an A.P. is -13 and the sum of the first four terms is 24, what is the sum of the first 10 terms ?