Math Test - Ratios

This is a multiple choice math test on the elementary knowledge of intended for 6th, 7th, or 8th school grades.
The test has 30 questions of varying difficulty.  
There are questions regarding proportions, comparing ratios, and some word problems. 
If you manage 25 correct answers, this is great. 
Less than 15 is really bad.
Read all the questions carefully, as there can be more than 1 correct answers.