Aquarium

Algebra Level 2

Samy needs to fill her aquarium with salt water. She needs to add 1/4 of a large bottle of salt water, but she only has 4 small bottles. If 4 bottles are 2/3 of a large bottle, how much of the small bottles should she use?

4 3/2 2/3 5/2

1 solution

Zee Ell
Aug 28, 2016

Let S be the quantity of salt water in a small bottle and L the quantity of salt water in a large bottle.

Then:

$4S = \frac {2}{3}L$

$6S = L$

$\frac {6}{4}S = \frac {1}{4}L$

$\boxed {\frac {3}{2}}S = \frac {1}{4}L$

Aquarium

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