Answer: Twiddle dee dee can type 3960 words per hour.
Explanation:
There are 3600 seconds in an hour.
3600 ÷ 20 = 180
Therefore, she/he can type 22 words 180 times during the hour.
22 · 180 = 3960
So, twiddle dee dee can type 3960 words per hour. (or 66 words per minute). This is my first answer, but I do hope this helps!