Edexcel D1 (Decision Mathematics 1) 2022 January

Question 1
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1.
\(\begin{array} { l l l l l l l l l l } 17 & 9 & 15 & 8 & 20 & 13 & 28 & 4 & 12 & 5 \end{array}\)
Question 2
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2. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{ba13c470-e91c-4579-928a-42f800b10b3f-06_477_1052_239_504} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{ba13c470-e91c-4579-928a-42f800b10b3f-06_474_1052_1361_504} \captionsetup{labelformat=empty} \caption{Figure 2}
\end{figure} \section*{D} \begin{verbatim} B $$\mathrm { A }$$ \end{verbatim} \begin{verbatim} \(\stackrel { \bullet } { \text { E } }\) \end{verbatim} \section*{Diagram 1} Weight of the minimum spanning tree: \(\_\_\_\_\)
Question 3
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3.
ActivityImmediately preceding activities
A-
B-
C-
DA, B, C
EA, B, C
FC
GF
HD
ID, E, G
JD, E
Please redraw your activity network on this page if you need to do so.
Question 4
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4.
.
\section*{Grid 1}
Question 5
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5. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{ba13c470-e91c-4579-928a-42f800b10b3f-12_705_1237_239_411} \captionsetup{labelformat=empty} \caption{Figure 4}
\end{figure} [The total weight of the network is 82]
Question 6
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6.
\includegraphics[max width=\textwidth, alt={}]{ba13c470-e91c-4579-928a-42f800b10b3f-14_1468_1779_285_143}
ABCDEFGH
A-
B-1424111819
C14-1210152223
D212-291617
E4102-71415
F111597-78
G182216147-1
H1923171581-
(b) \(\_\_\_\_\)
(c)
BCDEFGH
B-1424111819
C14-1210152223
D212-291617
E4102-71415
F111597-78
G182216147-1
H1923171581-