We have to know how many MB are 360GB, 360GB x 1,000MB/1GB = <<360000=360000>>360,000 MB
The total seconds downloading will be 360,000MB ÷ 50MB/second = <<360000/50=7200>>7,200 seconds
So she has to wait 7,200 seconds ÷ 3,600 seconds/1 hour = <<7200/3600=2>>2 hours
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