, 2016

When travelling from London to Edinburgh by train, you pass a sign saying 'Edinburgh 200 miles'. Then, $3\frac{1}{2}$ miles later, you pass another sign saying 'Half way between London and Edinburgh'. How many miles is it by train from London to Edinburgh?

(A) $393$ (B) $396\frac{1}{2}$ (C) $400$ (D) $403\frac{1}{2}$ (E) $407$