21.--A DEAL IN APPLES.

From Amusements in Mathematics by Henry Ernest Dudeney.

I was first offered sixteen apples for my shilling, which would be at the rate of ninepence a dozen. The two extra apples gave me eighteen for a shilling, which is at the rate of eightpence a dozen, or one penny a dozen less than the first price asked.

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21.--A DEAL IN APPLES.: Amusements in Mathematics by Henry Ernest Dudeney | amphi