the sum of the first seven terms.

The sum of the first five terms of an AP and the sum of the first seven terms of theits first twenty terms.same AP is 167. If the sum of the first ten terms of this AP is 235, find the sum of first twenty terms

1. The sum of the first five terms of an AP and the sum of the first seven terms of thesame AP is 167. If the sum of the first ten terms of this AP is 235, find the sum ofits first twenty terms.| Jaspal Singh repays his total loan of Rswith the first instalment of Rs 1000. If hemonth, what amount will be paid by hirloan does he still have to pay after the 3

If the first term of a GP is 729 and 7th term is 64, then the sum of its first seven terms is

Find the third term of a G.P. whose common ratio is 3 and the sum of whose first seven terms is 2186

The first term of an A.P. is 20 and the sum of its first seven terms is 2100, find the 31st term of this A.P.

Sum of the first 4 terms of an arithmetic sequence is 72. Sum of the first 9 terms is also 72. Find the sum of the first five terms.

If the first term of an AP is 2 and the sum of the first five terms is equal to one-fourth of the sum of the next five terms, then what is the sum of the first ten terms?

In a GP, the sum of the first three terms is 18, and the sum of the next three terms is 144.Find the ratio(r) and first term(a).

If the first term of a G.P. is 729 and its 7^(th) term is 64, then the sum of first seven terms is

What is the sum of the first seven multiples of 5 ?