Question

In the Central City Grand Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race?

Answer 1

Answer: 40%

Step By Step: Set this in a proportion. Since 12 out of 30 finished, it would be 12/30. Since you are dealing with percent, it would be x/100 because percent means per hundred. Set these equal to each other. 12/30 = x/100. Cross multiply. 30x = 1200. Divide. X = 40.