The maximum value of the sum of the A.P 50, 48,46, 44, ..... is

Find the sum of 50 terms of the A.P. 1 + 4 + 7 + ....

If the sum of the AP 48,44,40,36,..... upto n terms is -168 ,then the value of n is

The sum of all the terms of the A.P.7,10,13,... l is 1242. where l is the last term of the A.P. Find the value of l .

which term of an AP is zero -48,-46,-44.......?

Let {t_(n)} is an A.P If t_(1) = 20 , t_(p) = q , t_(q) = p , find the value of m such that sum of the first m terms of the A.P is zero .

In an A.P., the last term is 28 and the sum of all the 9 terms of the A.P. is 144. Find the first term.

If sum of first 20 terms of an A.P. is equal to sum of first 30 terms of the A.P. then sum of the first 50 terms of the A.P. is

How many terms of the A.P. 54, 51, 48, ... has the sum 513 ? Explain the double answer.

Sum of n Terms of an A.P. | Examples