Difference between revisions of "2004 AMC 12A Problems/Problem 9"
I_like_pie (talk | contribs) m (→See Also) |
m (2004 AMC 10A Problems/Problem 11 moved to 2004 AMC 12A Problems/Problem 9: {{duplicate}}) |
(No difference)
| |
Revision as of 19:09, 3 December 2007
Problem
A company sells peanut butter in cylindrical jars. Marketing research suggests that using wider jars will increase sales. If the diameter of the jars is increased by 
without altering the volume, by what percent must the height be decreased?
Solution
When the diameter is increased by , is is increased by 
, so the area of the base is increased by 
.
To keep the volume the same, the height must be 
of the original height, which is a 
reduction 
.
See also
| 2004 AMC 10A (Problems • Answer Key • Resources) | ||
| Preceded by Problem 10 |
Followed by Problem 12 | |
| 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 AMC 10 Problems and Solutions | ||
