| Exam Board | OCR MEI |
|---|---|
| Module | C2 (Core Mathematics 2) |
| Year | 2012 |
| Session | January |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Arithmetic Sequences and Series |
| Type | Find term or common difference |
| Difficulty | Moderate -0.8 This is a straightforward application of standard arithmetic progression formulas (a + d = 11 and S_40 = 3030) requiring only algebraic manipulation to solve simultaneous equations. The question involves routine recall and basic algebra with no problem-solving insight needed, making it easier than average but not trivial since it requires correct formula application and solving a system. |
| Spec | 1.04h Arithmetic sequences: nth term and sum formulae |
In an arithmetic progression, the second term is 11 and the sum of the first 40 terms is 3030. Find the first term and the common difference. [5]10 In an arithmetic progression, the second term is 11 and the sum of the first 40 terms is 3030 . Find the first term and the common difference.
\hfill \mbox{\textit{OCR MEI C2 2012 Q10 [5]}}