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Opens on Chapter 6’s example: the drill chart’s 0.375 inch, and three days of rainfall.
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From the book, Chapter 6. 0.375 is 375/1,000; dividing by 125 gives 3/8, Owen’s drill bit. 1.25 kg is 1 1/4 kg, and 12.8 miles is 12 4/5 miles. Lined up to thousandths, the rainfall reads 0.450, 0.405 and 0.500.
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