Question

There are 720 apple trees, peach trees and lemon trees altogether in an orchard. The number of apple trees is 2 times the number of lemon trees. The number of peach trees is half the number of apple trees. Find the number of each type of fruit trees in the orchard.

Answer 1

A = 2 L
P = A/2 so A = 2 P
so for starters P = L = A/2
P + A + L =720
A/2 + A + A/2 = 720
2 A = 720
A = 720/2
now go back and get P= L = 720/4