Problem N 6RP
we know that
12 out of 27 students have a pet
so
Applying proportion, find out how many students have a pet for 162 total students
12/27=x/162
solve for x
x=(12/27)*162
x=72
the answer is 72 students
Rule of three
27 students -------> 12 have a pet
162 students ----> x
162*12=27*x
x=(162*12)/27
x=72