| 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 | Moderate -0.8 This is a straightforward algebraic manipulation question requiring students to multiply through by the denominator and solve a linear equation. It's simpler than average A-level content as it only tests basic algebraic skills with one fraction, though the negative result and fractional coefficient require careful arithmetic. |
| Spec | 1.02c Simultaneous equations: two variables by elimination and substitution |
| Answer | Marks |
|---|---|
| 5 | −5 |
| Answer | Marks | Guidance |
|---|---|---|
| 10 | 3 | M1 for 4x + 5 = 2x × −3 and |
| Answer | Marks |
|---|---|
| 2x 2x | 3 |
Question 5:
5 | −5
oo..e.
10 | 3 | M1 for 4x + 5 = 2x × −3 and
M1 for 10x = −5 o.e. or M1 for
5 5
2+ =−3 and M1 for =−5 o.e.
2x 2x | 3Solve the equation $\frac{4x + 5}{2x} = -3$. [3]
\hfill \mbox{\textit{OCR MEI C1 Q5 [3]}}