The given pie chart shows the percentage distribution of total number of graduates [Employed + unemployed] in five different cities [A, B, C, D and E].

Note – Ratio of employed and unemployed graduate in each city is 2:1. Value of z is cube of an even prime number. Number of unemployed graduates in E is 1200. x is equal to the highest roots of equation a² -10a +24 =0. Cube of y (1< y < 10) is also equal to the square of a number(< 10)