Jennifer's BOB 2

In this scribe we had to Show some examples of answers that were wrong.
-What was your mistake.
-How will you remember what to do in future tests.

My mistake was not reading the question correctly and also not studying all that much . To improve this , i will study from now on for future math tests .

1. In a group of 84 students surveyed, the ratio of students preference is seven oatmeal eaters to four granola eaters to three toasted 0 eaters.

of 84 students, how many prefer oatmeal ?
Of 84 students, how many prefer granola ?
What percent ( to one decimal place ) of the group prefers toasted 0's ?

2. A rapid transit has 17 passengers on it as it starts to run. At the first stop 3 passengers get off and 37 passengers get on. What is the ratio of the number of passengers who were on the train as it arrived in the station to the number who were on the train when it left the station?
Express your answer in the lowest terms?