In an AP where the number of terms is odd, the sum of the first and the last term will be twice the middle term.
Four numbers in an AP sum up to 32. The ratio of product of first and last term to that of the two middle terms is 7:15. Find the numbers
An AP consists of 37 terms . The sum of the three middle terms is 22 and the sum of the last three terms is 429 . Find the AP