0%

Problem 17


Problem 17


Number letter counts

If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.

If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?

NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of “and” when writing out numbers is in compliance with British usage.


表达数字的英文字母计数

如果把1到5写成英文单词,分别是:one, two, three, four, five,这些单词一共用了3 + 3 + 5 + 4 + 4 = 19个字母。

如果把1到1000都写成英文单词,一共要用多少个字母?

注意: 不要算上空格和连字符。例如,342(three hundred and forty-two)包含23个字母,而115(one hundred and fifteen)包含20个字母。单词“and”的使用方式遵循英式英语的规则。