Question

In a class there are 20 boys and 19 girls if one student comes late and is sent home find the probability of selecting a giel

Answer 1

The probability of selecting a girl to send home is 19/39 .

• Given,

Number of boys in a class = 20

Number of girls in the same class = 19

• Total number of students in the class = Number of boys + Number of girls

∴  Total number of students = 20 + 19 = 39

• Probability of selecting a girl = Number of girls in the class / Total number of students in the class

=> Probability of selecting a girl = 19/39