Study the picture. Which of the following statement is correct ?
(A) The doll is as heavy as the toy clown.
(B) The doll is lighter than the toy clown.
(C) The toy clown is heavier than the doll.
(D) The doll is heavier than the toy clown.
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?