6 is the answer because in a multiplication problem, an equation can go in both directions. So to reverse it to make it easy, switch the problem to a division problem and make it 24/25%. From there, just divide 24 by four (because 25% is tecnically 4) and you would get six.
The answer would be 6. Why? It's because of the 24%. You have to change the 24 into 0.24. If you left it alone, the process would be confusing. Changing it into a decimal is much easier. After you changed the percent into a decimal, multiply the 25. You should get 6 as an answer.
Curt because if his time was 8/9 of Ian's time then that means he ran the mile in a fraction of Ian's time, so he finished the mile quicker. Curt ran faster.
