Dentist

Class 5. A participated in a preventive dental examination. A quarter of the pupils found two dental caries, an eighth of the pupils found one caries. Half the class had all their teeth healthy. How many students attend class 5. A if 4 students were missing on the day of the dental examination?

Correct result:

n =  32

Solution:

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

n = 32

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