Difference between revisions of "2004 AMC 10B Problems/Problem 3"
(New page: ==Problem== At each basketball practice last week, Jenny made twice as many free throws as she made at the previous practice. At her fifth practice she made 48 free throws. How many free t...) |
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==Solution== | ==Solution== | ||
| − | At the fourth practice she made <math>48/2=24</math> throws, at the third one it was <math>24/2=12</math>, then we get <math>12/2=6</math> throws for the second practice, and finally <math>6/2=\boxed{ | + | At the fourth practice she made <math>48/2=24</math> throws, at the third one it was <math>24/2=12</math>, then we get <math>12/2=6</math> throws for the second practice, and finally <math>6/2=3\Rightarrow\boxed{A}</math> throws at the first one. |
== See also == | == See also == | ||
{{AMC10 box|year=2004|ab=B|num-b=2|num-a=4}} | {{AMC10 box|year=2004|ab=B|num-b=2|num-a=4}} | ||
Revision as of 12:51, 19 February 2012
Problem
At each basketball practice last week, Jenny made twice as many free throws as she made at the previous practice. At her fifth practice she made 48 free throws. How many free throws did she make at the first practice?
Solution
At the fourth practice she made 
throws, at the third one it was 
, then we get 
throws for the second practice, and finally 
throws at the first one.
See also
| 2004 AMC 10B (Problems • Answer Key • Resources) | ||
| Preceded by Problem 2 |
Followed by Problem 4 | |
| 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 | ||
