Financial Maths, STD2 EQ-Bank 14 MC

Emma lives with three friends and they agree to split the household costs evenly. The household expenses are shown in the table below.

\begin{array} {|l|c|c|}
\hline
\rule{0pt}{2.5ex} \textbf{Expense} \rule[-1ex]{0pt}{0pt} & \textbf{Amount} \rule[-1ex]{0pt}{0pt} & \textbf{Period} \\
\hline
\rule{0pt}{2.5ex} \text{Rent} \rule[-1ex]{0pt}{0pt} & $800 \rule[-1ex]{0pt}{0pt} & \text{Weekly} \\
\hline
\rule{0pt}{2.5ex} \text{Utilities} \rule[-1ex]{0pt}{0pt} & $1040 \rule[-1ex]{0pt}{0pt} & \text{Quarterly} \\
\hline
\rule{0pt}{2.5ex} \text{Internet} \rule[-1ex]{0pt}{0pt} & $520 \rule[-1ex]{0pt}{0pt} & \text{Quarterly} \\
\hline
\rule{0pt}{2.5ex} \text{Food} \rule[-1ex]{0pt}{0pt} & $720 \rule[-1ex]{0pt}{0pt} & \text{Fortnightly} \\
\hline
\rule{0pt}{2.5ex} \text{Cleaning and other} \rule[-1ex]{0pt}{0pt} & $260 \rule[-1ex]{0pt}{0pt} & \text{Monthly} \\
\hline
\end{array}

What is Emma's share of the household costs per week?

$335
$340
$447
$1340

Show Answers Only

$A$

Show Worked Solution

$\text{Calculate total household costs per week:}$

$\text{Rent} =$800\ \text{per week}$

$\text{Utilities} =\dfrac{1040\times 4}{52} = \$80\ \text{per week}$

$\text{Internet} =\dfrac{520\times 4}{52} = \$40\ \text{per week}$

$\text{Food} =\dfrac{720}{2}= \$360\ \text{per week}$

$\text{Cleaning and other} =\dfrac{260\times 12}{52} = \$60\ \text{per week}$

$\text{Total weekly expenses}=800+80+40+360+60=$1340$

$\text{Emma’s share}=\dfrac{1340}{4}=$335$

$\Rightarrow A$