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" A traveled 8 miles a day more than B, and the number of days in which they met was equal to half the number of miles B went in a day ; how many miles did each travel per day 1 Ans. "
Arithmetic, algebra, differential and integral calculus, by W. Rutherford ... - الصفحة 155
بواسطة Royal Military Academy, Woolwich - 1853
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