CDS || Math || Arithmetic Progression Part-1 || Quiz

What is the fourth term of an AP of n terms who sum is n(n + 1)?

Three numbers are in AP. If their sum is 27 and their product is 648, find the sum of the first and last numbers

The digits of a 3 - digit number are in AP, and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number.

If  where  denotes the sum of the first  terms of an AP, then the common difference is

What is the common difference of the AP so that the product of the first, fourth and fifth terms is greatest?

What is the first term of the AP so that the product of the first, fourth and fifth terms is greatest?

Let T_r be the r^th term of an AP for r = 1, 2, 3, …… . If for same distinct positive integers m and n we have T_m = 1/n and
T_n = 1/m, then what is T_mn equal to?

The sum of (p + q)^th and (p - q)^th terms of an AP is equal to

If the sum of n terms of an AP is given by Sn = (2n² + 3n), then find its common difference.

If the non zero number p, q and r are in A.P. and  are also in A.P. then