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A and B depart from the same, place and travel the same road ; but A goes 5 days before B, at the rate of 15 miles a day . B follows at the rate of 20 miles a . day } what distance must he travel to overtake A ? Ans. 300 miles RULE OF THREE INVERSE.
Conversations on Arithmetic, with Demonstrations to Each Rule - Σελίδα 107
των Leonard Peirce - 1823 - 156 σελίδες
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