High School

Bottle A is full of water. Bottle B holds 16 ounces of water when full. When the contents of Bottle A are poured into Bottle B, Bottle B is full of water. How many ounces of water can Bottle A hold when full?

Answer :

4A = 3(16)
5 4

The proportion above says the same thing that the word problem does. 4/5 of A is the same as 3/4 of B (which is 16 oz).

If you cross multiply and reduce…

16A = 240
A = 15

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