Difference between revisions of "2009 AMC 10A Problems/Problem 7"
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==Solution 2== | ==Solution 2== | ||
− | If we change the question to 2% fat in the carton which is 50% less than whole milk, this means that there is 4% fat in the whole milk. The only answer closest and less than 4 is 10/3 <math>\implies \boxed{C}</math> | + | If we change the question to 2% fat in the carton which is 50% less than whole milk, this means that there is 4% fat in the whole milk. The only answer closest and less than 4 is 10/3 <math>\implies \boxed{C}</math>. 38% fat is a lot of fat in milk :O |
-RealityWrites | -RealityWrites | ||
Latest revision as of 20:03, 21 August 2024
Contents
Problem
A carton contains milk that is % fat, an amount that is
% less fat than the amount contained in a carton of whole milk. What is the percentage of fat in whole milk?
Solution
Rewording the question, we are being asked " is
less than what number?"
If
represents the number we are looking for, then
less than the number would be represented by
or
.
Thus
; solving for
, we get
Solution 2
If we change the question to 2% fat in the carton which is 50% less than whole milk, this means that there is 4% fat in the whole milk. The only answer closest and less than 4 is 10/3 . 38% fat is a lot of fat in milk :O
-RealityWrites
See also
2009 AMC 10A (Problems • Answer Key • Resources) | ||
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 |
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