2003 AMC 8 Problems
1. Jamie counted the number of eges of a cube, Jimmy counted the numbers of corners, and Judy counted the number of faces. They then added the three numbers. What was the resulting sum?
2. Which of the following numbers has the smallest prime factor?
3. A burger at Ricky C's weighs 120 grams, of which 30 grams are filler. What percent of the burger is not filler?
$\mathrm{(A)}\ 60% \qquad\mathrm{(B)}\ 65% \qquad\mathrm{(C)}\ 70% \qquad\mathrm{(D)}\ 75% \qquad\mathrm{(E)}\ 90%$ (Error compiling LaTeX. Unknown error_msg)
4. A group of children riding on bicycles and tricycles rode past Billy Bob's house. Billy Bob counted 7 children and 19 wheels. How many tricycles were there?
5. If 20 % of a number is 12, what is 30 % of the same number?
6. Given the areas of the three squares in the figure, what is the area of the interior triangle? Put Latex picture here)