MATHEMATICAL PROBLEMS.
270. By D. 0., Sandymount :— Find the difference in the weight of two fir logßofthe following dimensions supposing the epecifio gravity of male fir to be "550, and of female fir to be "498. Male fir, 28fb lOin long, 18in broad, and Win thick ; female fir 23ft 6in long, 16in broad, and 15in thick. 271. By John Whitty, Southland :— A penknife with one blade at each end of haft (handle) measures thus:— l he shorter blade is 7i inches long, the haft is as longaß the shorter plus Jof longer blade— and the longer blade is as long as the haft plus shorter blade, required the length of haft, and of longer blade geparately ?
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Bibliographic details
Otago Witness, Issue 1488, 22 May 1880, Page 24
Word Count
116MATHEMATICAL PROBLEMS. Otago Witness, Issue 1488, 22 May 1880, Page 24
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