Answer:
a) 4 students studied the three sciences.
b) Number of students who studied Physics = 17
c) Number of students that studied Biology or Chemistry or both = 30
Number of students in total = 36
Step-by-step explanation:
Using the Venn diagram, the region where the three circles of Biology, Chemistry and Physics denotes number of students that studied the three subjects.
Therefore,
a) 4 students studied the three sciences.
b) Number of students who studied Physics
= sum of all the numbers inside the circle of Physics
= 1 + 4 + 4 + 8
= 17
c) Number of students that studied Biology or Chemistry or both = sum of all the figures insides the circle of both Biology and Chemistry
= 1 + 3 + 4 + 5 + 8 + 9
= 30
d) Number of students in total = summation all the figures inside the diagram
= 4 + 5 + 9 + 1 + 3 + 8 + 4 + 2
= 36