In a school, 45 students are taking classes. 30 of them are taking Accounting and 18
are taking Economics. 12 of them are taking both of these classes. How many of the
students are not in either class? Why
A. 5
B. 7
C. 9
D. 11
are taking Economics. 12 of them are taking both of these classes. How many of the
students are not in either class? Why
A. 5
B. 7
C. 9
D. 11
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Answer:
D. 11
Step-by-step explanation:
30-12=28
18-12=6
28+6=34
45-34=11
Answer:
C
Step-by-step explanation:
minus 12 to both 30 and 18.
30 - 12 = 18
18 - 12 = 6
18 takes accounting only
6 takes economics only
12 takes both.
add all the three numbers:
18 + 6 + 12 = 36
minus 36 from the number of students and you will get the answer.
45 - 36 = 9
9 students are not in either of the classes.