There are 20 tickets numbered as 1, 2, 3, ..., 20 respectively. O… - Vidyadip

MCQ

There are $20$ tickets numbered as $\{1, 2, 3, ..., 20\}$ respectively. One ticket is drawn at random. what is the probability that the number on the ticket drawn is a multiple of $5?$

A
$\frac{1}{4}$
✓
$\frac{1}{5}$
C
$\frac{2}{5}$
D
$\frac{3}{10}$

✓

Answer

Correct option: B.

$\frac{1}{5}$

The total number of tickets $= 20$
The multiples of $5$ between $1$ and $20$ are $5, 10, 15$ and $20.$
So, there are $4$ numbers.
$P($getting a multiple of $5)$
$=\frac{4}{20}$
$=\frac{1}{5}$

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