| Exam Board | OCR MEI |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Marks | 3 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Solving quadratics and applications |
| Type | Solving simple rational equations |
| Difficulty | Easy -1.2 This is a straightforward algebraic manipulation question requiring cross-multiplication and solving a linear equation. It's simpler than average A-level content as it involves only basic algebraic techniques with no conceptual depth, making it easier than a typical multi-step problem. |
| Spec | 1.02c Simultaneous equations: two variables by elimination and substitution |
| Answer | Marks | Guidance |
|---|---|---|
| 11 | 1/5 or 0.2 o.e. www | 3 |
| Answer | Marks |
|---|---|
| 2x | 3 |
Question 11:
11 | 1/5 or 0.2 o.e. www | 3 | M1 for 3x + 1 = 2x × 4 and
M1 for 5x = 1 o.e.
or
1
M1 for 1.5+ =4 and
2x
1
M1 for =2.5 oo.
2x | 3Solve the equation $\frac{3x + 1}{2x} = 4$. [3]
\hfill \mbox{\textit{OCR MEI C1 Q11 [3]}}