Question

A factory produced toy cars at a rate of 400 cars per hour. If 12 cars are defective each hour, what percent of the toys are defective?

Answer 1

change/original times 100
change = 400-12
388/400(original)times 100=97
100-97=3 :)

Answer 2

3% are defective

Explanation:

400 cars are 100%

12 cars are x %

so x=12*100/400= 12/4=3 %