| Problem: For four days, Jerry kept a record of the number of laps he swam. The numbers he recorded were 6, 10, 14 and 18. If he continues in the same pattern, how many laps will he swim on the fifth day? Solution: Make a table to summarize the data: Day Number of laps 1 6 2 10 (6 + 4) 3 14 (10 + 4) 4 18 (14 + 4) 5 ? Notice that each day Jerry swam 4 more laps than the day before. Therefore, all we have to do is to add 4 to 18 and that is equal to 22. Answer: On the fifth day Jerry will be swimming 22 laps. |
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