Difference between revisions of "2002 AMC 8 Problems/Problem 13"

(Created page with "For his birthday, Bert gets a box that holds 125 jellybeans when filled to capacity. A few weeks later, Carrie gets a larger box full of jellybeans. Her box is twice as high, twi...")
 
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==Problem==
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For his birthday, Bert gets a box that holds 125 jellybeans when filled to capacity. A few weeks later, Carrie gets a larger box full of jellybeans. Her box is twice as high, twice as wide and twice as long as Bert's. Approximately, how many jellybeans did Carrie get?  
 
For his birthday, Bert gets a box that holds 125 jellybeans when filled to capacity. A few weeks later, Carrie gets a larger box full of jellybeans. Her box is twice as high, twice as wide and twice as long as Bert's. Approximately, how many jellybeans did Carrie get?  
  
 
<math> \text{(A)}\ 250\qquad\text{(B)}\ 500\qquad\text{(C)}\ 625\qquad\text{(D)}\ 750\qquad\text{(E)}\ 1000 </math>
 
<math> \text{(A)}\ 250\qquad\text{(B)}\ 500\qquad\text{(C)}\ 625\qquad\text{(D)}\ 750\qquad\text{(E)}\ 1000 </math>
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==Solution==
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Assume Bert's box is <math>1 \times 1 \times 1</math> which is <math>1</math> cubic meter. Then his box holds <math>125</math> jellybeans per cubic meter. Carrie has a box that is <math>2 \times 2 \times 2</math> which is <math>8</math> cubic meters. Her box holds eight times as many jellybeans as Carrie's which is <math>(8)(125)=\boxed{\text{(E)}\ 1000}</math>.
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==See Also==
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{{AMC8 box|year=2002|num-b=12|num-a=14}}

Revision as of 19:42, 23 December 2012

Problem

For his birthday, Bert gets a box that holds 125 jellybeans when filled to capacity. A few weeks later, Carrie gets a larger box full of jellybeans. Her box is twice as high, twice as wide and twice as long as Bert's. Approximately, how many jellybeans did Carrie get?

$\text{(A)}\ 250\qquad\text{(B)}\ 500\qquad\text{(C)}\ 625\qquad\text{(D)}\ 750\qquad\text{(E)}\ 1000$

Solution

Assume Bert's box is $1 \times 1 \times 1$ which is $1$ cubic meter. Then his box holds $125$ jellybeans per cubic meter. Carrie has a box that is $2 \times 2 \times 2$ which is $8$ cubic meters. Her box holds eight times as many jellybeans as Carrie's which is $(8)(125)=\boxed{\text{(E)}\ 1000}$.

See Also

2002 AMC 8 (ProblemsAnswer KeyResources)
Preceded by
Problem 12
Followed by
Problem 14
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All AJHSME/AMC 8 Problems and Solutions