| Exam Board | CAIE |
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| Module | P1 (Pure Mathematics 1) |
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| Year | 2008 |
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| Session | November |
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| Topic | Arithmetic Sequences and Series |
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3 The first term of an arithmetic progression is 6 and the fifth term is 12 . The progression has \(n\) terms and the sum of all the terms is 90 . Find the value of \(n\).