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‹Better GutenbergThe Canterbury Puzzles96 — The Fifteen Orchards · 220 of 238Contents›

The Canterbury Puzzles

by Henry Ernest Dudeney

220 of 238 · Contents · Download EPUB

96 The Fifteen Orchards

The number must be the least common multiple of 1, 2, 3, etc., up to 15, that, when divided by 7, leaves the remainder 1, by 9 leaves 3, by 11 leaves 10, by 13 leaves 3, and by 14 leaves 8. Such a number is 120. The next number is 360,480, but as we have no record of a tree—especially a very young one—bearing anything like such a large number of apples, we may take 120 to be the only answer that is acceptable.

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