| Exam Board | AQA |
|---|---|
| Module | Further AS Paper 2 Discrete (Further AS Paper 2 Discrete) |
| Year | 2021 |
| Session | June |
| Marks | 2 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Critical Path Analysis |
| Type | Find missing early/late times |
| Difficulty | Easy -1.8 This is a basic activity network question requiring only reading values from a diagram and applying the fundamental rule that earliest event times are found by taking the maximum of incoming paths. With only 1 mark per part and multiple choice format, it tests minimal understanding of critical path analysis with no calculation complexity or problem-solving required. |
| Spec | 7.05b Forward and backward pass: earliest/latest times, critical activities |
| Answer | Marks | Guidance |
|---|---|---|
| 1(a) | Circles correct answer | 1.1b |
| Total | 1 | |
| Q | Marking instructions | AO |
| Answer | Marks | Guidance |
|---|---|---|
| 1(b) | Circles correct answer | 1.1b |
| Total | 1 | |
| Question total | 2 | |
| Q | Marking instructions | AO |
Question 1:
--- 1(a) ---
1(a) | Circles correct answer | 1.1b | B1 | 7
Total | 1
Q | Marking instructions | AO | Marks | Typical solution
--- 1(b) ---
1(b) | Circles correct answer | 1.1b | B1 | 7
Total | 1
Question total | 2
Q | Marking instructions | AO | Marks | Typical solution\begin{enumerate}[label=(\alph*)]
\item A project consists of three activities $A$, $B$ and $C$
An activity network for the project is shown in the diagram below.
\includegraphics{figure_1}
Find the value of $x$
Circle your answer.
[1 mark]
5 \quad 7 \quad 8 \quad 12
\item Find the value of $y$
Circle your answer.
[1 mark]
5 \quad 7 \quad 8 \quad 15
\end{enumerate}
\hfill \mbox{\textit{AQA Further AS Paper 2 Discrete 2021 Q1 [2]}}