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.
Eli typed _______ on his second attempt. He typed ______ words per minute on his first attempt and ______ words per minute on his second attempt.