Respuesta :
Answer: There are 74 students of third grade attend an assembly .
Step-by-step explanation:
The number of students in third grade classes = 26
The number of third classes in the school = 3
Therefore, the total number of students of third grade in the school =[tex]3\times26=78[/tex]
Now, it 4 students are absent then the number of third grade students in the school = [tex]78-4=74[/tex]
Hence, there are 74 students of third grade attend an assembly .