Answer:
1680 words.
Explanation:
There are 60 minutes in an hour. So all you need to do it 560 + 560 + 560.
I say this because he types 560 word in 20 minutes..20+20+20 is 60 so that means you have to add 560, 3 times as well.
Hope this helped! :)
1680 words
560 / 20 = 28
28 x 60 = 1680
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