Jessica bought two horses and a harness for a total of $4500. The value of the better horse and the harness together was twice the value of the poorer horse. What is the value of the poorer horse? (You don’t need algebra for this: do it in your head!)

Basically the $4500 is divided into three parts: 2 parts for the better horse and harness and 1 part for the poorer horse. So each part is $1500; the poorer horse was worth $1500.