Question

Students in grades 7 and 8 were asked which food they liked best. The results are shown in the table.Favorite FoodPizza Hot Dog Hamburger TotalGrade 7 40 2535 100Grade 8353035100Total755570200What percentage of all students prefer hot dogs?

Answer 1

The number of all students that prefer hot dogs, as shown in the table, is 55. It is also shown in the table that there are 200 students in total, so this tells us that 55 out of 200 students prefer hot dogs. The percentage is found by dividing these two and multiplying by 100:

$\begin{gathered} \frac{55}{200}=0.275 \\ 0.275\times100=27.5 \end{gathered}$

So 27.5% of all the students prefer hot dogs. The correct answer is option B