Lizzy: Philip has a farm with animals. He has 20 cows, 50% more ducks. Philip also has as many pigs as one-fifth of ducks and cows in total. How many animals does Philip have on his farm?.
Me: Hmmm, let me think. I think this is the detailed solution:
Philip has 50 / 100 * 20 = 10 more ducks than cows. Which means he has 20 + 10 = 30 ducks. So Philip's cows and ducks sum up to 20 + 30 = 50 animals. If there are 50 cows and ducks, that means Philip has 1 / 5 * 50 = 10 pigs. In total Philip has 50 + 10 = 60 animals on his farm. Final answer: 60.