MathDB
Three Numbers

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January 2, 2009

Problem Statement

The sum of three numbers is 20 20. The first is 4 4 times the sum of the other two. The second is seven times the third. What is the product of all three? <spanclass=′latex−bold′>(A)</span> 28<spanclass=′latex−bold′>(B)</span> 40<spanclass=′latex−bold′>(C)</span> 100<spanclass=′latex−bold′>(D)</span> 400<spanclass=′latex−bold′>(E)</span> 800 <span class='latex-bold'>(A)</span>\ 28 \qquad <span class='latex-bold'>(B)</span>\ 40 \qquad <span class='latex-bold'>(C)</span>\ 100 \qquad <span class='latex-bold'>(D)</span>\ 400 \qquad <span class='latex-bold'>(E)</span>\ 800
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