Question

. In an incoming freshman class of 500 students, only 20 claimed to be math majors. What percent of the freshman class is this?
b. When the survey was repeated the next year, 5% of nonmath majors had decided to switch and become math majors.
i. How many math majors are there now?
ii. What percent of the former freshman class do they
represent?

Answer 1

Step-by-step explanation:

a) 20 out of 500 are math majors.

i.e. (20/500)*100 = 4%.

b) non math majors are 500-20=480

5% of this 480 shift to maths.

i.e. (5/100)*480 = 24

(i) Now total math majors are 20+24 = 44

(ii) percentage = (44/500)*100 =8.8%