Are You Smarter Than a 5th Grader?

We have a issue with one of the questions. Or rather the answer to that question. But we're not sure if we understood it correctly. It has to do with the distance traveled... hectometers and decameters. Where can we find the exact wording of the question? My husband is adamant that you stated a wrong answer. And if we locate the exact question, how would he go about stating his case. He wants to be on your show more than anything. His argument seems valid to me and we just need calrification. I'd appreciate any assistance you could give us. Thanks!