2005 AMC 10A Problems/Problem 1

From AoPSWiki

Problem

While eating out, Mike and Joe each tipped their server $\$2$ . Mike tipped $10%$ of his bll and Joe tipped $20%$ of his bill. What was the difference, in dollars between their bills?

$\mathrm{(A) \ } 2\qquad \mathrm{(B) \ } 4\qquad \mathrm{(C) \ } 5\qquad \mathrm{(D) \ } 10\qquad \mathrm{(E) \ } 20$

Solution

Let $m$ be Mike's bill and $j$ be Joe's bill.

So the desired difference is $m-j=20-10=10 \Rightarrow D$

Personal tools

Navigation

Search

Toolbox

2005 AMC 10A Problems/Problem 1

From AoPSWiki

Problem

Solution

See Also