Question

A study of a population of 1,080 frogs revealed that 15 out of every 180 frogs in the population have spots on their back. Based on the results of this study, how many frogs in the population do NOT have spots on their back?​

Answer 1

I think it’s 990 maybe not I did 1080/180=6 then 15*6=90 then did 1080-90=990 I think