In an AP, the sum of first ten terms is -150 and the sum of its next ten terms is -550 Find the AP

In and AP, the sum of the first 10 terms is -150 and sum of the next ten terms is -550. Find the AP.

Consider an arithmetic progression whose first term is a . if the sum of the first ten terms is zero and the sum of next ten terms is -200 then find the value of a .

The sum of the first sixteen terms of an AP is 112 and the sum of its next fourteen terms is 518 .Find the AP

In a AP of 50 terms the sum of first 10 terms is 210 and the sum of last 15 terms is 2565. Then find the AP

The sum of the first 8 terms of an A.P. is 100 and the sum of its first 19 terms is 551. Find the first term and the common difference of the AP.

The sum of first 7 terms of an AP is 63 and the sum of next 7 terms is 161. Find a_(28) .

The sum of the first fifteen terms of an A.P. is 105 and the sum of the next fifteen terms is 780. Find the common difference of A.P.:

The sum of first ten terms of an A.P. is 120. The sum of next ten terms is 320. Find the first term and common difference.

In an A.P. the sum of the first ten terms is 210 and thee difference between the first and the last term si 36 . Fiind the first term in the A.P.