Question

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?

Answer 1

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

Answer 2

18 male students have brown eyes

Step-by-step explanation:

The total number of students in the class
`= 120\\`

Out of this
`50\\` % are males. Thus, the total number of male students in the class are

`(50)/(100) * 120\\= (1)/(2) * 120\\= 60`

Out of
`60\\` male students,
`50`% of the male students have brown eyes.

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

`= (30)/(100) * 60\\= 18\\`

Thus, total 18 male students have brown eyes.