Put her age at, say, thirty and allow ten years to either side.
Available data for the formation puts its age at 1.25 billion years.
"I would have put her age at no older than forty."
I put her age between thirty and thirty-five, although she could have passed for less.
He would have put this girl's age at seventeen, perhaps eighteen.
They lied on the marriage certificate to put her age at 16.
The best estimates, in fact, put his age that August at a month or so past 83.
I put her age between thirty and thirty-five, although it could have been less.
Various estimates have put its age at between 2,000 and 2,500 years.
News reports put her age at either 57 or 64.