Answer :
98% Grade was achieved, so 0.98 of the questions were answered correctly.
n = number of problems
[tex]\frac{86}{n} = 0.98 \\ \\ n = \frac{86}{0.98} \\ \\ n = 87.755...[/tex]
Our final answer can't be a decimal, so we round it to:
[tex]n = 87[/tex]
n = number of problems
[tex]\frac{86}{n} = 0.98 \\ \\ n = \frac{86}{0.98} \\ \\ n = 87.755...[/tex]
Our final answer can't be a decimal, so we round it to:
[tex]n = 87[/tex]
