It is possible that some may be older or younger and some may be taught in a class where the majority of learners are of a different age.
Mae’n bosibl y bydd rhai’n hŷn neu’n iau, ac mae’n bosibl y bydd rhai’n cael eu haddysgu mewn dosbarth lle mae’r rhan fwyaf o’r dysgwyr o oedran gwahanol.