Please answer a question about the following article about Saint Barth%C3%A9lemy:

Located approximately 250 kilometres (160 mi) east of Puerto Rico and the nearer Virgin Islands, St. Barthelemy lies immediately southeast of the islands of Saint Martin and Anguilla. It is one of the Renaissance Islands. St. Barthelemy is separated from Saint Martin by the Saint-Barthelemy Channel. It lies northeast of Saba and St Eustatius, and north of St Kitts. Some small satellite islets belong to St. Barthelemy including Ile Chevreau (Ile Bonhomme), Ile Fregate, Ile Toc Vers, Ile Tortue and Gros Ilets (Ilots Syndare). A much bigger islet, Ile Fourchue, lies on the north of the island, in the Saint-Barthelemy Channel. Other rocky islets which include Coco, the Roques (or little Turtle rocks), the Goat, and the Sugarloaf.

How many Miles East of Puerto Rico is St. Barts?
160