Class 5. I participated in a preventive dental examination. A quarter of the pupils found two dental caries, and an eighth found one caries. Half the class had all their teeth healthy. How many students attend class 5? If four students were missing on the day of the dental examination?

Correct answer:

n =  32

Step-by-step explanation:

n/4+n/8 + n/2 + 4 = n

n = 32

n = 32/1 = 32

n = 32

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