The first term in an arithmetic sequence of 100 terms whose common difference is 4 and whose sum is 20300 is

The sum of the first 20 terms of an arithmetic progression whose first term is 5 and common difference is 4, is __________.

It the sum of first 10 terms of an arithmetic progression with first term p and common difference q , is 4 times the sum of the first 5 terms, then what is the ratio p : q ?

The first four terms of an AP whose first term is 3x+y and common difference is x-y are

The first four terms of an A.P. whose first term is -2 and the common difference is -2 are

The sum of the first n terms of an AP whose first term is 8 and the common difference is 20, is equal to the sum of first 2n terms of another AP whose first terms is -30 and the common difference is 8. find n

The sum of the first n terms of an AP whose first term is 8 and the common difference is 20 is equal to the sum of first 2n terms of another AP whose first term is -30 and the common difference is 8. Find n.

Find the 14 th term of an AP whose first term is 3 and the common difference is 2.

How many arithmetic progressions with 10 terms are there whose first term is the set {1, 2, 3} and whose common difference is in the set {2, 3, 4} ?

Let {a_(n)} be an arithmetic sequence with first term 77 and common difference -3. Find the maximum value of sum_(k=1)^(n)a_(k)

Sum of first n terms of an A.P. whose last term is l and common difference is d, is