Four numbers are in arithmetic progression.The sum of first and last terms is `8` and the product of both middle terms is `15.` The least number of the series is.

Four numbers are in arithmetic progression. The sum of first and last terms in 8 and the product of both middle terms is 15. the least number of the series is

In an Arithmetic progression the sum of first four terms is 20 and the sum of first three terms is 12 then find the fourth term of the arithmetic

The sum of four consecutive terms which are in an arithmetic progression in 32 and the ratio of the product of the first and the last term to the product of two middle terms is 7:15 . Find the number.

The sum of four consecutive terms which are in an arithmetic progression is 32 and the ratio of the product of the first and the last term to the product to two middle terms is 7:15 . Find the number.

In an arithmetic progression of 50 terms, the sum of first ten terms is 210 and the sum of last fifteen terms is 2565. Find the arithmetic progression.

In an arithmetic progression of 50 terms, the sum of first ten terms is 210 and the sum of last fifteen terms is 2565. Find the arithmetic progression.

In an increasing geometric progression, the sum of the first and the last term is 99, the product of the second and the last but one term is 288 and the sum of all the terms is 189. Then, the number of terms in the progression is equal to

In an increasing geometric progression, the sum of the first and the last term is 99, the product of the second and the last but one term is 288 and the sum of all the terms is 189. Then, the number of terms in the progression is equal to

The sum of four consecutive numbers in A.P.is 32 and the ratio of the product of the first and last term to the product of two middle terms is 7:15. Find the number