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by Brian Gladman on June 28, 2015

Sunday Times Teaser 2753 – No Question About It!

by H Bradley & C Higgins

Published: 28 June 2015

A rectangular sign has a length that is twice its width. These lengths are whole numbers of centimetres such that half its perimeter is equal to both the square of the sum of the digits of its length and the square of the sum of the digits of its width.

What are its dimensions?

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