| Exam Board | OCR MEI |
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| Module | C2 (Core Mathematics 2) |
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| Year | 2011 |
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| Session | January |
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| Topic | Arithmetic Sequences and Series |
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6 The third term of an arithmetic progression is 24 . The tenth term is 3 .
Find the first term and the common difference.
Find also the sum of the 21st to 50th terms inclusive.