We are given that 30% of 30 questions were answered right. To know the number of questions that were right we need to multiply the number of the question by 30%, that is 30/100, like this:
[tex]30\times\frac{30}{100}[/tex]Solving the operations we get:
[tex]30\times\frac{30}{100}=9[/tex]Therefore, 9 questions were answered right.
