Subject :IMO Class : Class 6
In a certain town some people were affected by a ’flu’ epidemic. In the first month 20% of the population contracted the flu whilst 80% were healthy. In the following month 20% of the sick people recovered and 20% of the healthy people contracted the disease. What fraction of the population is healthy at the end of the second month?
A0.68
B0.60
C0.52
D0.44
Ans 1: (Master Answer)
Class : Class 1
The correct answer is A.