Question

There are 300 students in the eighth grade. The ratio of girls to boys is 3 to 2. What percent of the students are boys?

A.33 1/3%

B.40%

C.66 2/3%

D.150%

Answer 1

For ratio questions, add the numbers on each side and use that as a denominator to find fractions:
If the ratio of girls to boys is 3:2, 3+2=5, so 2/5 of students in the 8th grade are boys. 2/5 can be written as 40/100 if you multiply both the numerator and denominator by 20, and 40/100 is 40%. Therefore, the answer is B.

Answer 2

the answer would be D