Respuesta :

Answer:

30/students

Step-by-step explanation:

Let the number of students be x

(20% of x) + 4 + 20 = x

20/100x +24 = x

Multiply each term by 100

20x + 2400 = 100x

100x - 20x = 2400

80x = 2400

x = 2400/80

x = 30