contestada

In a biology class of 120 students, 50% are males and 30% of the males have brown eyes. how may brown-eyed males are in the biology class?

Respuesta :

#males =120/2 = 60 males
0.3=30%
60×0.3= 18 males have brown eyes

Answer:

18 male students have brown eyes

Explanation:

The total number of students in the class [tex]= 120\\[/tex]

Out of this [tex]50\\[/tex] % are males. Thus, the total number of male students in the class are

[tex]\frac{50}{100} * 120\\= \frac{1}{2} * 120\\= 60[/tex]

Out of [tex]60\\[/tex] male students, [tex]50[/tex]% of the male students have brown eyes.

Thus, the total number of male students with brown eyes in the class

[tex]= \frac{30}{100} * 60\\= 18\\[/tex]

Thus, total 18 male students have brown eyes.

Otras preguntas