Difference between revisions of "2003 AMC 8 Problems/Problem 4"
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A group of children riding on bicycles and tricycles rode past Billy Bob's house. Billy Bob counted <math>7</math> children and <math>19</math> wheels. How many tricycles were there? | A group of children riding on bicycles and tricycles rode past Billy Bob's house. Billy Bob counted <math>7</math> children and <math>19</math> wheels. How many tricycles were there? | ||
Revision as of 16:22, 29 July 2011
Problem
A group of children riding on bicycles and tricycles rode past Billy Bob's house. Billy Bob counted 
children and 
wheels. How many tricycles were there?
Solution
If all the children were riding bicycles, there would be 
wheels. Each tricycle adds an extra wheel and 
extra wheels are needed, so there are 
tricycles.
