Difference between revisions of "2009 AMC 8 Problems/Problem 2"
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| + | ==Problem== | ||
| + | |||
On average, for every 4 sports cars sold at the local dealership, 7 sedans are sold. The dealership predicts that it will sell 28 sports cars next month. How many sedans does it expect to sell? | On average, for every 4 sports cars sold at the local dealership, 7 sedans are sold. The dealership predicts that it will sell 28 sports cars next month. How many sedans does it expect to sell? | ||
<math> \textbf{(A)}\ 7\qquad\textbf{(B)}\ 32\qquad\textbf{(C)}\ 35\qquad\textbf{(D)}\ 49\qquad\textbf{(E)}\ 112 </math> | <math> \textbf{(A)}\ 7\qquad\textbf{(B)}\ 32\qquad\textbf{(C)}\ 35\qquad\textbf{(D)}\ 49\qquad\textbf{(E)}\ 112 </math> | ||
| + | |||
| + | ==Solution== | ||
| + | This means the ratio is <math>4:7</math>. If the ratio now is <math>28:x</math>, then that means <math>x= \boxed{\textbf{(D) }49}</math>. | ||
| + | |||
| + | ==Video Solution== | ||
| + | https://youtu.be/USVVURBLaAc?t=59 | ||
| + | |||
| + | ==See Also== | ||
| + | {{AMC8 box|year=2009|num-b=1|num-a=3}} | ||
| + | {{MAA Notice}} | ||
Revision as of 16:31, 14 August 2021
Contents
Problem
On average, for every 4 sports cars sold at the local dealership, 7 sedans are sold. The dealership predicts that it will sell 28 sports cars next month. How many sedans does it expect to sell?
Solution
This means the ratio is 
. If the ratio now is 
, then that means 
.
Video Solution
https://youtu.be/USVVURBLaAc?t=59
See Also
| 2009 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 1 |
Followed by Problem 3 | |
| 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 | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
