Question

Julie asked 50 students in her school whether they do volunteer work. This table shows the results.The graph is in the pictureHow many more seventh graders than eighth graders did Julie survey?

Answer 1

Given the table below:

From the table,

`\begin{gathered} Number\text{ of seventh graders = 27} \\ Number\text{ of eighth graders = 23} \end{gathered}`

Since there are more seventh-graders than eighth-graders, we can evaluate the number of more seventh-graders by subtracting the number of eighth-graders from the number of seventh-graders.

Thus, we have

`\begin{gathered} 27-23 \\ =4 \end{gathered}`

Hence, Julie surveyed 4 more seventh-graders than eighth-graders.