JEE Main 2012Annual, Paper 1MathematicsMediumSets, Relations and Functions168× since 2002
Let X = {1, 2, 3, 4, 5}. The number of different ordered pairs (Y, Z) that can be formed such that Y X, Z X and Y Z is empty, is :
JEE Main 2012 · Annual, Paper 1 · Q5351