To determine how many words James can type in 30 seconds, we can first find his typing speed based on the information given.
James types 40 words in 20 seconds. We can calculate his typing rate:
Typing Speed = Words Typed / Time Taken Typing Speed = 40 words / 20 seconds = 2 words per second
Now we can find out how many words he can type in 30 seconds:
Words Typed in 30 seconds = Typing Speed × Time Words Typed in 30 seconds = 2 words/second × 30 seconds = 60 words
Therefore, James can type 60 words in 30 seconds.