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?

18 male students have brown eyes

Explanation:

The total number of students in the class

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

Out of male students, % of the male students have brown eyes.

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

Thus, total 18 male students have brown eyes.