<prompt> On a given day, a hospital had 50 admissions with about 20 girls and 30 boys, out of which 10 girls and 20 boys needed surgery. What is the possibility of picking up a person requiring surgery -6-Feb5-Mar2-Jan25-Jun  <response>: Ans. is b i.e., 35 o Out of 50, 30 10 girls 20 boys persons required surgery. So, every individual has a 3050 35 chance of having surgery. 