Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 100, what is his shoe size?
Choose the correct option.
A) 100 B) 55 C) 85 D) 40 E) 50
Solution -   Given that, G = 2B and Life expectancy(L) = 100   L=2SB/G -&gt; 100 = 2SB/2B --&gt; S=100.   100NS 100
<result>A</result>
Life expectancy is defined by the formula 2SB/G, where S = shoe size, B = average monthly electric bill in dollars, and G = GMAT score. If Melvin's GMAT score is twice his monthly electric bill, and his life expectancy is 100, what is his shoe size?