A farmer has a total of 200 ducks and cows in his barn. If he has n cows, how many total legs are th

A farmer has a total of 200 ducks and cows in his barn. If he has n cows, how many total legs are there in the barn? (Make sure you include the farmer.)

• Number of cows = n
• Legs per cow = 4
• Cows legs = 4n
• Number of ducks = 200 - n
• Legs per duck = 2
• Number of ducks legs = (200 - n) x 2 = 400 - 2n
• Farmers legs = 2

Total legs = Cows legs + Ducks Legs + Farmers Legs
Total legs = 4n + 400 - 2n + 2
Total legs = 2n + 402