Question

At 15 mins you burn with a uv rating of 6 what would it be at uv 10

Answer 1

First you multiple 15 by 10 and you get 150 and then you Divide 150 by 6 and you get 25. So at a uv rating of 10 it will take you 10 minutes

Answer 2

you can set up a proportion

15 mins / 6 uv = x / 10 uv

Cross multiply

15 x 10 = 150

6 x X = 6x

150 = 6x

divide by 6

x = 25

So, as 25 minutes, the uv is 10