Question

in a class there are 20 boys and 16 girls. 1/4 of the boys and 50% of the girls walk to school. a student who walks to school is chosen randomly. fill out the chart below. what is the probability that a student walks to school?

Explanation:

Step1: Calculate number of boys who walk

The number of boys is 20, and $\frac{1}{4}$ of them walk. So the number of boys who walk is $20\times\frac{1}{4}= 5$.

Step2: Calculate number of girls who walk

The number of girls is 16, and 50% of them walk. So the number of girls who walk is $16\times0.5 = 8$.

Step3: Calculate total number of students who walk

The total number of students who walk is $5 + 8=13$.

Step4: Calculate total number of students

The total number of students is $20 + 16=36$.

Step5: Calculate the probability

The probability that a student walks to school is $\frac{13}{36}$.

Answer:

$\frac{13}{36}$