James types 84 words in 2 minutes. He estimates that his history essay is 420 words long. What is the least amount of time James will need to type his essay?

2 Answers
Mar 28, 2018

10 min

Explanation:

84 words = 2 minutes

So

42 words = 1 minute

Then

420 words×1 min42 words=10 minutes

Mar 28, 2018

10 minutes.

Explanation:

If James can write 84 words in 2 minutes, then he writes 842 words/minute, or 42. Since 420 is 42×10, he can write 420 words in 10 minutes.