Difference between revisions of "2009 AMC 10A Problems/Problem 7"

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A carton contains milk that is <math>2</math>% fat, an amount that is <math>40</math>% less fat than the amount contained in a carton of whole milk. What is the percentage of fat in whole milk?
 
A carton contains milk that is <math>2</math>% fat, an amount that is <math>40</math>% less fat than the amount contained in a carton of whole milk. What is the percentage of fat in whole milk?
  
 
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<math>
 
\mathrm{(A)}\ \frac{12}{5}
 
\mathrm{(A)}\ \frac{12}{5}
 
\qquad
 
\qquad
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\qquad
 
\qquad
 
\mathrm{(E)}\ 42
 
\mathrm{(E)}\ 42
 
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</math>
  
 
==Solution==
 
==Solution==

Revision as of 13:46, 14 February 2010

Problem

A carton contains milk that is $2$% fat, an amount that is $40$% less fat than the amount contained in a carton of whole milk. What is the percentage of fat in whole milk?

$\mathrm{(A)}\ \frac{12}{5} \qquad \mathrm{(B)}\ 3 \qquad \mathrm{(C)}\ \frac{10}{3} \qquad \mathrm{(D)}\ 38 \qquad \mathrm{(E)}\ 42$

Solution

$\longrightarrow \fbox{C}$

See also

2009 AMC 10A (ProblemsAnswer KeyResources)
Preceded by
Problem 6
Followed by
Problem 8
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