How many ounces of water can bottle A hold when full?

Question

Bottle A is 4/5 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 3/4 full of water. How many ounces of water can bottle A hold when full?

Answer 1

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