2013-II-10
Ans: A
The cost of profit making car
… Read The cost of profit making car
$\begin{array}{cl}
= &#
HKDSE-MATH
2013-II-11
Ans: D
The required interest
… Read The required interest
$\begin{array}{cl}
= & \
2013-II-12
Ans: C
The area in the map $:$ the actual area
… Read The area in the map $:$ the actual area
$\begin{array}
2013-II-13
Ans: C
Let $z=\dfrac{kx}{\sqrt{y}}$, where $k$ is a non-ze
… Read Let $z=\dfrac{kx}{\sqrt{y}}$, where $k$ is a non-ze
2013-II-14
Ans: D
From the equation $x+ay+b=0$, we have
… Read From the equation $x+ay+b=0$, we have
$\begin{array
2013-II-15
Ans: B
The four axes of reflectional symmetry are as follow:
… Read The four axes of reflectional symmetry are as follow:
2013-II-16
Ans: B
Join $BC$ and $OC$, where $O$ is the centre of the semic
… Read Join $BC$ and $OC$, where $O$ is the centre of the semic
2013-II-17
Ans: B
The slant height of the right circular cone
… Read The slant height of the right circular cone
$\begin{a
2013-II-18
Ans: C
Join $AE$.
… Read Join $AE$.
Since $AD:BC=2:3$ and $E$ is the mid-point
2013-II-19
Ans: C
$\because AB//AD$,
… Read $\because AB//AD$,
$\therefore \angle ADB = \angle D
2013-II-20
Ans: D
Add a rectangle on the figure as shown below.
… Read Add a rectangle on the figure as shown below.
Since the
2013-II-21
Ans: C
I is true. The interior angle of the regular $n$-sided
… Read I is true. The interior angle of the regular $n$-sided
2013-II-22
Ans: A
For some positive constant $k$,
… Read For some positive constant $k$,
$\begin{array}{rcl
2013-II-23
Ans: B
I must be true.
… Read I must be true.
$\begin{array}{rcl}
\text{LHS}
2013-II-24
Ans: A
Let $P=(x,y)$.
… Read Let $P=(x,y)$.
$\begin{array}{rcl}
AP & =
2013-II-25
Ans: D
Note that the general form of $C$ is $x^2+y^2-2x+4y-\
… Read Note that the general form of $C$ is $x^2+y^2-2x+4y-\
2013-II-26
Ans: A
The required probability
… Read The required probability
$\begin{array}{cl}
=
2013-II-27
Ans: B
Since the mode is $14$, there are at least three $14$ in
… Read Since the mode is $14$, there are at least three $14$ in
2013-II-28
Ans: A
It is obvious that the crosses move to the right and up.
… Read It is obvious that the crosses move to the right and up.
2013-II-29
Ans: D
Note that the median, the lower quartile and the upper
… Read Note that the median, the lower quartile and the upper