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

 
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==Solution==
 
==Solution==
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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Since the volume ratio is equal to the sides ratio cubed, then the ratio of the larger box's volume to the smaller one is 2 cubed.
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<math>2^3=8</math>
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Now multiply 125 (the number of jellybeans that Bert's box can hold) by 8.
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<math>8\cdot125=
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\boxed{\text{(E)}\ 1000}</math>.
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==Video Solution by WhyMath==
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https://youtu.be/JnXzlMhq6pI
  
 
==See Also==
 
==See Also==
 
{{AMC8 box|year=2002|num-b=12|num-a=14}}
 
{{AMC8 box|year=2002|num-b=12|num-a=14}}
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{{MAA Notice}}

Latest revision as of 13:31, 29 October 2024

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

Since the volume ratio is equal to the sides ratio cubed, then the ratio of the larger box's volume to the smaller one is 2 cubed.

$2^3=8$

Now multiply 125 (the number of jellybeans that Bert's box can hold) by 8.

$8\cdot125= \boxed{\text{(E)}\ 1000}$.

Video Solution by WhyMath

https://youtu.be/JnXzlMhq6pI

See Also

2002 AMC 8 (ProblemsAnswer KeyResources)
Preceded by
Problem 12
Followed by
Problem 14
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

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