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jmc

geometry junior

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?
(A)
(B)
(C)
(D)
(E)
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. Now multiply 125 (the number of jellybeans that Bert's box can hold) by 8. .
Final answer
E