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.
Eli was slower on his second attempt because he typed fewer words per minute. ;
Eli typed 420 words on his second attempt, achieving a speed of 210 words per minute. In contrast, on his first attempt, he typed 140 words per minute. As a result, Eli was faster on his second attempt.
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Jawaban:hewan bebek,telur bebek dll