Question

Suppose thirty-two students signed up for classes during an orientation session. If
exactly twenty of them signed up for Chemistry and exactly sixteen of them signed
up for English, how many of them signed up for both Chemistry and English?

Answer 1

Step-by-step explanation:

Total number of student signed up for classes during an orientation session=32

Total number of student signed up for chemistry=20

Total number of student signed up for English=18

Total number of student signed up chemistry or English or both=20+18=38

Therefore, Total number of student who signed up both chemistry and English=38–32=6

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