Question
43 people were in a queue to return their library books . Pierre was the 10th person from the front. Elijah was the 20th person from the back. How many people were standing between Pierre and Elijah?
2 m

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43 people were in a queue to return their library books . Pierre was the 10th person from the front. Elijah was the 20th person from the back. How many people were standing between Pierre and Elijah?