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Mathematics, 29.07.2019 18:20 megamorph

Amagic rectangular belt always shrinks its length to 1/2 and width to 1/3 whenever its owner wishes something. after three such wishes, its surface was 4 cm squared. what was the original length, if the original width was 9 cm? (pls me pls pls)

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Amagic rectangular belt always shrinks its length to 1/2 and width to 1/3 whenever its owner wishes...
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