A metal strip is 1.5 m long and a wooden strip is 50 cm long. Their lengths form the ratio 3:1. Enter the first term of that simplest ratio.
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3
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Writing 1.5 m as 150 cm makes the ratio 150:50, and division by 50 gives 3:1. Comparing 1.5 directly with 50 would mix metres and centimetres and produce a meaningless numerical pair.