Difference between revisions of "2005 AMC 10A Problems/Problem 1"
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| − | While eating out, Mike and Joe each tipped their server <math> | + | While eating out, Mike and Joe each tipped their server <math>2</math> dollars. Mike tipped <math>10%</math> of his bill and Joe tipped <math>20%</math> of his bill. What was the difference, in dollars between their bills? |
<math> \mathrm{(A) \ } 2\qquad \mathrm{(B) \ } 4\qquad \mathrm{(C) \ } 5\qquad \mathrm{(D) \ } 10\qquad \mathrm{(E) \ } 20 </math> | <math> \mathrm{(A) \ } 2\qquad \mathrm{(B) \ } 4\qquad \mathrm{(C) \ } 5\qquad \mathrm{(D) \ } 10\qquad \mathrm{(E) \ } 20 </math> | ||
Revision as of 14:34, 24 December 2009
Problem
While eating out, Mike and Joe each tipped their server 
dollars. Mike tipped $10%$ (Error compiling LaTeX. Unknown error_msg) of his bill and Joe tipped $20%$ (Error compiling LaTeX. Unknown error_msg) of his bill. What was the difference, in dollars between their bills?
Solution
Let 
be Mike's bill and 
be Joe's bill.
So the desired difference is 
