What is the average weight for an 18-year-old 5'10'' model?

They say that someone 5 feet tall should weigh 100 pounds and to add 5 pounds for every inch there after. So, technically, 150 pounds, but just so your know if you are athletic or have boobs and an ass, it will add another 20. I am 5'10 and weighed 170 and was a size 8. Very healthy and people would still call me skinny and tell me I looked like a model. So there you go.