Thirty-Six of the Staff of 80 Teachers at a Local

Multiple Choice

Thirty-six of the staff of 80 teachers at a local high school are certified in Cardio-Pulmonary Resuscitation (CPR) .In 180 days of school,about how many days can we expect that the teacher on yard duty will likely be certified in CPR?

A) 81 days.
B) 65 days.
C) 45 days.
D) 5 days.