The promotion ‘AMAZING! 20% OFF ALL OUR BEDFRAMES’ appears on the cover of the 2006 brochure of a well-known furniture company. If 20% were to be taken off the length of a bedframe originally 2.10 m long, what would be the resulting length of the bedframe?
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2.00 \text{ m}
1.90 \text{ m}
1.89 \text{ m}
1.78 \text{ m}
1.68 \text{ m}
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Senior Mathematical Challenge 2006 (2006)
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