Mike weighs twice as much as Mary. Mike's weight is 150% of Michelle's weight. Alan weighs 140% of Charlie's weight. Charlie weighs 180% of Mary's weight. Which of these 5 people weighs the highest? Select the correct option
A) Mary
B) Mike
C) Michelle
D) Alan
E) Charlie
Mary &lt; Michelle &lt; Mike   Charlie &lt; Alan   Let x be Mary's weight.   Mike's weight is 2x and Alan's weight is   1.4*1.8= 
<gadget id="calculator">  1.4*1.8</gadget>
<output>2.52</output>
2.52x.   The answer is Alan.
<result>D</result>
Mike weighs twice as much as Mary. Mike's weight is 150% of Michelle's weight. Alan weighs 140% of Charlie's weight. Charlie weighs 180% of Mary's weight. Which of these 5 people weighs the highest?