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

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

If the sum of first 10 terms of an A.P is 60 and sum of first 15 terms is -165 then find the sum of its n terms

If the sum of first 15 terms of an A.P. is 675 and its first term is 10, then find 25th term.

If the sum of first 15 terms of an A.P is 675 and its first term is 10, then find 25^@ term.

The sum of first 14 terms of an AP is 1050 and its first term is 10, then find the 21st term of the AP.

The sum of first 14 terms of an AP is 1050 and its first term is 10, then find the 21st term of the AP.

The twelfth term of an A.P. is (-13) and the sum of its first four terms is 24, find the sum of first 10 terms of the A.P.