MCQ
One ticket is drawn at random from a bag containing tickets numbered $1$ to $40.$ The probability that the selected ticket has a number, which is a multiple of $7,$ is :
- A$\frac{1}{7}$
- ✓$\frac{1}{8}$
- C$\frac{1}{5}$
- D$\frac{7}{40}$
✓
Answer
Correct option: B.
$\frac{1}{8}$
The total number of tickets $= 40$
The multiples of $7$ between $1$ and $40$ are $7, 14, 21, 28$ and $35.$
So. there are $5$ numbers.
$P($getting a multiple of $7)$
$=\frac{5}{40}$
$=\frac{1}{8}$
The multiples of $7$ between $1$ and $40$ are $7, 14, 21, 28$ and $35.$
So. there are $5$ numbers.
$P($getting a multiple of $7)$
$=\frac{5}{40}$
$=\frac{1}{8}$
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