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:

Eli typed faster on his second attempt. He typed 140 words per minute on his first attempt and 210 words per minute on his second attempt.