"Les participants du concours sont jeunes."

Translation: The participants of the competition are young.

[Selbosh]

A less cumbersome English translation would be "The contestants are young".

[Sitesurf]

The word taught being "participant(e)(s)", the preferred translation must have the English translation for that word, so that when you get it to translate it back to French, you can have a hint of the word you should use.

For your information, "contestants" can back translate to "concurrent(e)s" (usually in sports) or "compétiteurs/compétitrices" (sports or other types of contests).

[John10583]

Actually the exact translation is "competitors" because it applies to physical competition. "contestants" usually is used for participants in a game (like the ones on TV).

[JeffMaynar1]

But that is marked wrong, too

[Betsy134556]

In English, one would normally say "The participants in the competition. . . ."

[pete841152]

Competition participants are known as competitors! Please review

[StevenHoc]

Why is contest being marked wrong?

[Sitesurf]

Something else might have been wrong, because "contest" is accepted.