A study of a population of 1,200 frogs revealed that

12 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?
A 80
B 168
C 1,280
D 1,120**

3 answers

Yes, you're right.

180 - 12 = 168
so
(168/180) * 1200
yes, agree

1200