On a package of rice, the directions say that the ratio of cups of water to cups of uncooked rice should be 1: 1 2 . a. what is the total number of cups of ingredients needed if you want to cook 1 2 cup of uncooked rice? b. susan says that the ratio of cups of water to total cups of ingredients is 1: 2 because there is twice as much water as there is rice. is this the correct ratio? explain why or why not, and if not, give the correct ratio.

A) To cook 1/2 cup of rice, the package tells you that you also need 1 cup of water. The the total volume of ingredients is
.. 1/2 c + 1 c = 1 1/2 c

b) According to the package the ratio of water to rice is
.. water : rice = 1 : 1/2 = 2 : 1
Then the ratio of water to total ingredients is
.. water : (water + rice) = 2 : (2 +1) = 2 : 3

Susan's ratio is incorrect. Susan is using "1" for the total of ingredients, instead of 2+1 = 3. The correct ratio is 2:3.