The Fruit Yield Per Tree in an Orchard That Contains

Multiple Choice

The fruit yield per tree in an orchard that contains 60 trees is 240 pounds per tree each year. Due to crowding, the yield decreases by 2 pounds per season per every additional tree planted. How many additional trees should be planted for a maximum total annual yield ?

A) 25 additional trees
B) 30 additional trees
C) 90 additional trees
D) 20 additional trees
E) 60 additional trees