Find four number in an A.P. whose sum is 20 and sum of their squares is 120.

Find the three consecutive terms in an A.P. whose sum is 18 and the sum of their squares is 140.

Find four numbers in G.P. whose sum is 85 and product is 4096.

Find 3 numbers in AP where sum is 15 and sum of their reciprocals is 71/105

Find three consecutive terms in terms in an A.P. whose sum is -3 and the product of their cubes id 512.

Find four consecutive terms in an A.P. whose sum is 12 and the sum of 3^(rd) and 4^(th) term is 14. (Let four consecutive terms be a -d ,a,a+d, a+2d)

Find two positive numbers whose sum is 15 and the sum of whose squares is minimum.

Find two numbers whose sum is 27 and product is 182.

Sum of infinite number of terms in GP is 20 and sum of their square is 100. The common ratio of GP is

Find two positive numbers whose sum is 16 and the sum of whose cubes is minimum.