240.--THE UNION JACK.

[Illustration]

The illustration is a rough sketch somewhat resembling the British flag,

the Union Jack. It is not possible to draw the whole of it without

lifting the pencil from the paper or going over the same line twice. The

puzzle is to find out just _how much_ of the drawing it is possible to

make without lifting your pencil or going twice over the same line. Take

your pencil and see what is the best you can do.

Amusements in Mathematics · 第 273 / 970 题