Which typing time is the fastest? 220 words in 8minutes 600 words in 12 minutes •• 350 words in 10 minutes 225 words in 5 minutes

You can find which is fastest by setting each up as a fraction;
[tex] \frac{220}{8} = 27.5 \frac{words}{minute} \\ 
\frac{600}{12} = 50 \frac{w}{m} \\ 
\frac{350}{10} = 35 \frac{w}{m} \\ 
\frac{225}{5} = 45 \frac{w}{m} [tex]
Since 50 is the highest amount of words per minute, '600 words in 12 minutes' is your answer.

The answer is D - 140 degrees. Because 40 + 40 = 80
360-80=280
280/2=140