Calculated multiple choice quiz question

Calculated multiple choice questions operate much like the multiple choice question type, however the choices available are generated from a given formula, using wildcards and datasets.

For example, a question may be: 'Calculate the area of a square where it's width = {width} and the height = {height}.

The correct answer would be: 'The square's area is {={width}*{height}} cm2' 

An incorrect answer could be: ' The square's area is {={width}+{height}} cm2' 

The correct answer choice would display with the calculated answer, based on the values the system automatically generates.