Which articles to use with estimation

When estimating a person's age, when do you use an indefinite article, and a definite one? Both are used in examples in Lesson 1.15. Does including the object estimated make the difference? Elle a une soixantaine d'années, plus ou moins. = She is about 60 years old, more or less. Elle a la soixantaine = She is about 60.

Bonjour Isabelle, 'Elle a une soixantaine d'années' means that that she is aged somewhere in the sixties and it could be any age from 60 to 69. 'Ella a la soixantaine' means that she has turned 60. Therefore, sing the definite article means that somebody has that exact age and using the indefinite article is more vague and doesn't specify an exact age. I hope this helps, - Marie-Claire

Hmm ... can you say "Elle a des soixantaine d'annees" ?

I forgot to say merci, Marie-Claire. It did help; thank you.

Bonjour tous les deux! Lancish, unfortunately no you cannot say that. It must be one of the two stated above. Mais de rien Isabelle, c'est avec plaisir! Keep up the good work! - Marie-Claire