Ischool,60 percent of the school is girls 50 percent of the girls walk to school 20 percent of the boys walk to school what percentage of the students walk to school. i .

Well 60% of the school is girls so 40% must be boys.
50% of girls walk so 50% of 60% or 30%(0.6*0.5) of the school must walk
20% of boys walk so 20% of 40% or 8%(0.4*0.2) also walk
Thus 30%+8%=38%

The answer to your question is the last one