Difference between revisions of "1999 AMC 8 Problems/Problem 17"
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Revision as of 12:56, 23 December 2012
Problem
At Central Middle School the 108 students who take the AMC8 meet in the evening to talk about problems and eat an average of two cookies apiece. Walter and Gretel are baking Bonnie's Best Bar Cookies this year. Their recipe, which makes a pan of 15 cookies, lists this items: 
cups flour, 
eggs, 
tablespoons butter, 
cups sugar, and 
package of chocolate drops. They will make only full recipes, not partial recipes.
Walter can buy eggs by the half-dozen. How many half-dozens should he buy to make enough cookies? (Some eggs and some cookies may be left over.)
Solution
If 
students eat cookies on average, there will need to be 
cookies. There are 
cookies per pan, meaning there needs to be 
pans. However, since half-recipes are forbidden, we need to round up and make 
pans.
pan requires eggs, so pans require 
eggs. Since there are 
eggs in a half dozen, we need 
half-dozens of eggs, and the answer is 
See Also
| 1999 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 16 |
Followed by Problem 18 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AJHSME/AMC 8 Problems and Solutions | ||
