Ans: (a) $35^\circ$ (b) $\$18\ 000$ (c) $\$1\ 750$
-
$\begin{array}{rcl}
x & = & 360^\circ – 40^\circ -90^\circ – 130^\circ -35^\circ – 30^\circ \\
& = & 35^\circ
\end{array}$ - Her total expenditure in that month
$\begin{array}{cl}
= & 1~750 \div \dfrac{35^\circ}{360^\circ} \\
= & \$18~000
\end{array}$ - Since the angles at centre of the Travelling sector and the Transportation are the same, then her expenditure on travelling and on transportation in that month are also the same. Hence, her expenditure on travelling in that month is $\$1~750$.
