Mathematics, 19.10.2020 07:01 daviddorley

In an arithmetic series
If a1=855 and a20=760 find s20

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In an arithmetic series
If a1=855 and a20=760 find s20...

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In an arithmetic series If a1=855 and a20=760 find s20

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Another question on Mathematics

In an arithmetic series
If a1=855 and a20=760 find s20