MathDB
easy inequality

Source:

January 30, 2016
inequalitiesalgebra

Problem Statement

Let x,y,z,tx,y,z,t be real numbers such that, 1xyzt1001 \leq x \leq y \leq z \leq t \leq 100. Find minimum value of xy+zt\frac{x}{y}+\frac{z}{t}