If the first term of an A.P. is 100 and sum of its first 6 terms is 5 times the sum of next 6 terms, then find the common difference of the A.P.

If the first term of an A.P. is 100 and the sum of its first 6 terms is five times the sum of the next 6 terms then its common difference is

If the first term of an A.P. is 3 and the sum of its first 25 terms is equal to the sum of its next 15 terms, then the common difference of this A.P. is:

The first term of an A.P. is 100 and the sum of whos f first 6 terms is 5 xx the sum of the next 6 terms,then the c.d. is

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 first term of an A.P. is 3.The sum of first 25 terms is equal to the sum of next 15 terms.Find the common difference of the A.P.

In any A.P. if sum of first six terms is 5 times the sum of next six terms then which term is zero?

In any A.P. if sum of first six terms is 5 times the sum of next six terms then which term is zero?

In any A.P. if sum of first six terms is 5 times the sum of next six terms then which term is zero?

The first term of an A.P. is 5, the last term is 45 and the sum of its terms is 1000. Find the number of terms and the common difference of the A.P.

Sum of first 25 terms in A.P. is 525, sum of next 25 terms is 725, what is the common difference?