HKDSE-MATH - 2020 - Paper 1

2020-I-01

Ans: $\dfrac{m^9}{n^{10}}$
$\begin{array}{cl}
& \

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2020-I-02

Ans: (a) $(\alpha + 3)(\alpha -2)$ (b) $\alpha^2(\alpha + 3

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2020-I-03

Ans: (a) $600$ (b) $534.76$ (c) $530$

$600$
$534.76$
$530$

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2020-I-04

Ans: $\dfrac{4}{5}$
$\begin{array}{rcl}
\dfrac{a}{b} &

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2020-I-05

Ans: $416$
Let $x$ and $y$ be the numbers of male and female ap

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2020-I-06

Ans: (a) $x \neq -1$ (b) $-2$

$\begin{array}{rcl}
3 –

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2020-I-07

Ans: (a) $9$ (b)$-8$, $5$

Since the equation $p(x) = 0$ has eq

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2020-I-08

Ans: (a) $12^\circ$ (b) $168^\circ – \theta$

In $\De

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2020-I-09

Ans: (a) The mean $=5.4$, the median $=5.5$, the standard de

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2020-I-10

Ans: (a) $\$133$ (b) No

Let $P = k_1 + k_2h^3$, where $k_1, k_2

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2020-I-11

Ans: (a) $6$ (b) $\dfrac{3}{10}$

Since there are $20$ lette

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2020-I-12

Ans: (a) $700\pi\text{ cm}^3$ (b) $195\pi\text{ cm}^2$

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2020-I-13

Ans: (a) $-8$ (b) Yes

According to the division algorithm, l

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2020-I-14

Ans: (a) $(x-10)^2 + (y + 15)^2 = 625$ (b) (i) $\Gamma$ is para

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2020-I-15

Ans: (a) $\dfrac{161}{3876}$ (b) $\dfrac{3715}{3876}$

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2020-I-16

Ans: (a) $64$ (b) $96$

Let $a$ and $r$ be the first term and the

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2020-I-17

Ans: (a) $(k, k^2 + 4)$ (b) No

$\begin{array}{rcl}
g(x) &

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2020-I-18

Ans: (b) (i) $1547\pi\text{ cm}$ (ii) Yes

In $\Delta UTV$ an

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2020-I-19

Ans: (a) $16.9\text{ cm}$ (b) $1400\text{ cm}^2$ (c) (i) $1

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