If x men working for x hours a day can do x units of a work in x days, then y men working y hours per day would be able to complete, how many units of works ??

(a) x(square) / y(cube)

(b) x(cube) / y(square)

(d) y(square) / x(cube)

(d) y(cube) / x(square)

Please show the simplest of the simplest formula with example