Passage: The Gambia is less than 50 kilometres (31 miles) wide at its widest point, with a total area of 11,295 km2 (4,361 sq mi). About 1,300 square kilometres (500 square miles) (11.5%) of The Gambia's area are covered by water. It is the smallest country on the African mainland. In comparative terms, The Gambia has a total area slightly less than that of the island of Jamaica.

Question: How many kilometers wide is the Gambia?
50