Question 814943
goat price = x
sheep price =y

(12x+12y)/24  is the average price

(12x+12y)/24=600

12x+12y=24*600

/12
x+y=1200.......................(1)

y= 2x...........................(2)

substitute y=2x in )1)

x+2x=1200
3x=1200
x=400

y=2x
so y=800