HKDSE-MATH - 2018 - Paper 2 -

Ans: $200\ 914$
The required number

$\begin{array}{cl}
= &

Ans: C
Consider the sample space.

$\begin{array}{|c|c|c|

Ans: C
The required probability

$\begin{array}{cl}
= 

Ans: D
The required probability

$\begin{array}{cl}
= 

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

1. T

Ans: B
Note that the sample space is

$\begin{array}{|c|c|c

Ans: A
The required queue

$\begin{array}{cl}
= & 5! \t

Ans: B
The required probability

$\begin{array}{cl}
= 

Ans: (a) $3\ 628\ 800$ (b) $\dfrac{7}{15}$

1. The required num

Ans: D

Note that there are $24$ workers. Then the lower quart

Ans: D

The required number of different choirs

$\begin{arr

Ans: D

The required probability

$\begin{array}{cl}
= 

Ans: (a) $\dfrac{54}{133}$ (b) $\dfrac{79}{133}$

1. The req

Ans: D

Since only $532$ is divisible by $7$. Then the require

Ans: B

The required number of password formed

$\begin{arra

Ans: B

The required probability

$\begin{array}{cl}
=