Mike weighs twice as much as Mary. Mike's weight is 50% of Michelle's weight. Alan weighs 40% of Charlie's weight. Charlie weighs 180% of Mary's weight. Which of these 5 people weighs the highest? Options:
A) Mary	B) Mike	C) Michelle	D) Alan	E) Charlie
Mary &lt; Mike &lt; Michelle   Alan &lt; Charlie   Let x be Mary's weight.   Michelle's weight is 4x and Charlie's weight is 1.8x.   The answer is Michelle.
<result>C</result>
Mike weighs twice as much as Mary. Mike's weight is 50% of Michelle's weight. Alan weighs 40% of Charlie's weight. Charlie weighs 180% of Mary's weight. Which of these 5 people weighs the highest?