Eli takes a typing test and types all 420 words in 1/20 hour. He takes the test a second time and types the words in 1/30 hour.
Was he faster or slower on the second attempt? Complete the explanation. Eli typed _______ on his second attempt. He typed ______ words per minute on his first attempt and ______ words per minute on his second attempt.
To find if Eli was slower or faster in the second attempt we need to find a common denominator of both 1/20 and 1/30 hour.
1/20 = 3/60 1/30 = 2/60
We can now see that he made the first test in 3 minutes and the second test in 2 minutes.
If there were 420 words to rewrite, then he did 420 / 3 = 140 words per minute in the first attempt and 420 / 2 = 210 words per minute in the second attempt. So to complete the explanation:
<span>Eli typed <u>faster</u> on his second attempt. He typed <u>140</u> words per minute on his first attempt and <u>210</u> words per minute on his second attempt.</span>
