Billy lives in a town in which 75% of pets are dogs.
Billy lives in a town in which 75% of pets are dogs. Of the non-dog pets, 50% are cats. If there are 50 pets in town that are not cats or dogs, how many pets are there in town?
Answer/Solution
400
Steps/Work
Let x be the number of pets in town.
Then N is the number of non-dog pets given by
N = x - 75%x
And P is the number of pets that aren't cats or dogs, given by
P = N - 50%N
for P = 50, solve for x
50 = (x - 75%x) - 50%(x - 75%x)
x = 400, correct answer C
Then N is the number of non-dog pets given by
N = x - 75%x
And P is the number of pets that aren't cats or dogs, given by
P = N - 50%N
for P = 50, solve for x
50 = (x - 75%x) - 50%(x - 75%x)
x = 400, correct answer C