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An ant is at a crossroads of a square grid of highways spaced 1 meter apart.

The ant can walk 1 meter in 15 seconds along a highway, but off-road it can only travel half as fast.

Find the area of the region composed of all points the ant can reach in at most 30 seconds.

Note: an ant highway is just a line with no thickness.

(No Solution Yet, 3 Comments) Submitted on 2018-08-17 by Jer    

Difficulty: 3 of 5 In Memoriam (in Numbers) Rating: 5.00
476I2 P54274Y 102 38918 02 "3I8G 9F 59C3 & 5977 "

How does the above sentence relate
to to-day's date?

Finding the only zero-less answer to the alphametic
might be of help.

(No Solution Yet, 2 Comments) Submitted on 2018-08-16 by Ady TZIDON    

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