Celina surveyed 60 students at her schools and found that 0.75 of students she surveyed said their favorite class is math. Another 35% of the students she surveyed reported that their favorite class is science. How many students in the survey prefer math over science?

Question

Mathematics

Areli Love

30 October, 19:38

Celina surveyed 60 students at her schools and found that 0.75 of students she surveyed said their favorite class is math. Another 35% of the students she surveyed reported that their favorite class is science. How many students in the survey prefer math over science?

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Answers (2)

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Gibbs · Answer 1

0.75 of 60 = 45 students and 35% of 60 = 21 students, so it means there are 60-21=39 students with only maths, 45-39=6 students have both maths and science, 60-45=15 students with only science

Alisson Osborne · Answer 2

0,75⇔75% (m)

35% (s)

75%+35%=110%

110%-100%=10% (m+s)

75%-10%=65% (only m)

60-100%

(?) - 65%

65*60:100=39 (stud.)