In a high school, 30% of student take physics, 15% of students take chemistry. The rest of students are taking biology. What is minimum student taking biology?
A.7
B.8
C.9
D.10
E.11
The ratio is 6:3:11
To find the minimum number of students taking biology, we need to calculate the percentage of students taking biology and then convert it into an actual number.
Given that 30% of students take physics and 15% take chemistry, we can calculate the percentage of students taking biology as follows:
100% - (30% + 15%) = 55%
Now, we need to convert this percentage into an actual number. Let's assume there are 100 students in total.
55% of 100 students = (55/100) * 100 = 55 students
Therefore, the minimum number of students taking biology is 55.
However, none of the answer choices match 55, so we need to round up the minimum number of students to the nearest whole number. Since we cannot have partial students, we round up to the nearest whole number, which is 56.
Therefore, the correct answer is not listed among the options provided.