計概mass storage問題

Suppose a typist could type 60 words per min continuously day after day. How long would it take the typist to fill a CD whose capacity is 640 MB? Assume one word is five characters and each character requires one byte of storage.

煩請各位大大幫忙解答,感謝

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  • 1 decade ago
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    先把題目翻為中文:

    假設一個 word 有五個 characters ,而每個 character 佔用一個 byte ,

    如果每分鐘敲 60 個 words ,則多少時間可填滿一片容量為 640 MB 的 CD ?

    這題應該是在考 MB ,

    1 MB 為 1024 KB ,

    1 KB 為 1024 Bytes ,

    所以 640 MB 表示 640 *1024*1024 Bytes 。

    每分鐘敲 60 個 words ,每個 word 有五個 characters ,

    表示每分鐘敲 300 個 characters ,

    表示一分鐘可填滿 300 個 bytes 。

    所以

    填滿一片 640 MB 的 CD 需要 (640 *1024*1024 / 300) 分鐘,

    也就是 2236962.13 分鐘。

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