Did you solve it? The enduring appeal of Venn diagrams

Sharer: Science|The-Guardian July 29, 2019 at 8:00 am

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The solutions to today’s puzzles

Earlier today I set you these four Venn diagram teasers:

1) For each of the regions marked A to D below, think of a fraction that could belong in it, or say that it is impossible. (Each circle represents the set of fractions described by its rule.)

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