How many MBs are there in 10 GB?

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    Answering these sorts of questions always gets confusing, because of a recent change in how we measure data.
    You see, originally, there was 8 bits to a byte, 1024 bytes to a kilobyte (kB), 1024 kB to a megabyte (MB) and so on… Now, however, they have made the powers of 1024 abbreviated with an i in it, and renamed it. For example, Kilobyte now means 1000 bytes, and Kibibyte means 1024 bytes. The reasoning for this makes sense (the original prefixes technically mean powers of ten, not two like computers think in), but it’s not very pleasing for people who learned that KB meant 1024.
    Anyways, on to the actual question.
    Using 1 GB = 1024 MB, you take the ten and multiply it by 1024, so
    10 GB * 1024 MB/GB = 10 * 1024 MB = 10240 MB
    Using 1 GB = 1000 MB, you again take the ten but this time multiply it by a thousand, so
    10 GB * 1000 MB/GB = 10 * 1000 MB = 10000 MB

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