## 13. Motorcycle Racing

In one of the races, an equal number of Italian and Swedish riders participated. The former were mainly short brunettes, the latter - tall blondes. However, there were exceptions. For example, one fifth of the Swedish riders were short brunettes. On the other hand, it is known that in the total number of riders, for every two tall blondes there were three short brunettes, and among the riders there was not a single tall brunette or a short blonde.

At the finish line, two fans, $A$ and $B$, were eagerly waiting for the riders. Suddenly, a tall blonde appeared in the distance.

- Look, - said $A$, - a Swede.
- Nothing of the sort, - countered $B$.

If you were also standing at the finish line, which of the fans would you support: $A$ or $B$?
13. Since one fifth of the Swedish drivers were short brunettes, four fifths of them were tall blondes. Therefore, two out of every five drivers were simultaneously tall, blonde, and Swedish.

At the same time, it is known that among all the drivers, for every two tall blondes, there were three short brunettes. This means that all the tall blondes were Swedish.

Thus, the fan $A$ was right.