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If the 12th term is 144 and the 14th term is 377, what's the 11th term?
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If the 12th term is 144 and the 14th term is 377, what's the 11th term?

User ChuckJHardy
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377 - 144 = 233 and 233 / 2 = 116.5 is the common difference so the 11th term is 260.5
User Wuppi
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