3. Neighbor Ana raises chickens. Four years ago, she had 32 chickens. The number of chickens increased by $25 \%$ each of the first two years, and then decreased by $20 \%$ each of the next two years. How many chickens does neighbor Ana have this year?
3. Four years ago, neighbor Ana had 32 chickens.
Three years ago, neighbor Ana had 125% of 32, which is 40 chickens. ..... 2 POINTS
Two years ago, neighbor Ana had 125% of 40, which is 50 chickens. ..... 1 POINT
Last year, she had 80% of 50, which is 40 chickens. ..... 2 POINTS
This year, she has 80% of 40, which is 32 chickens.
TOTAL 6 POINTS