A Web music store offers two versions of a popular song. The size of the standard version is 2.3 megabytes (MB). The size of the high-quality version is 4.2 MB. Yesterday, there were 990 downloads of the song, for a total download size of 3427 MB. How many downloads of the standard version were there?

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Step-by-step explanation:

If there was 3427 MB, the lower quality would've gotten 1,490 sales alone.