MCQ
The probability that a number selected at random from the numbers 1, 2, 3, ..., 15 is a multiple of 4 is:
- A$\frac{4}{15}$
- B$\frac{2}{15}$
- ✓$\frac{1}{5}$
- D$\frac{1}{3}$
✓
Answer
Correct option: C.
$\frac{1}{5}$
The selected numbers would be 4, 8, and 12.
So, there are 3 number.
P(number of multiples of 4)
$=\frac{\text{Number of multipes of 4}}{\text{Total}}$
$=\frac{3}{15}$
$=\frac{1}{5}$
So, there are 3 number.
P(number of multiples of 4)
$=\frac{\text{Number of multipes of 4}}{\text{Total}}$
$=\frac{3}{15}$
$=\frac{1}{5}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If a wire is bent into the shape of a square, then the area of the square is $81\ cm^2$.When wire is bent into a semi-circular shape, then the area of the semi $-$ circle will be :
→If $(-2,1)$ is the centroid of the triangle having its vertices at $(x, 2),(10,-2),(-8, y)$, then $x, y$ satisfy the relation
→If the diagram in Fig. shows the graph of the polynomial $f(x) = ax^2+ bx + c,$ then :
→Directions : In the following questions, the Assertions $(A)$ and Reason $(s)\ (R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion : The values of $x$ are $-a^2,$ a for a quadratic equation $2 \times 2+a x-a^2=0$.
Reason : For quadratic equation $a \times 2+b x+c=0 \text{x}=\frac{-\text{b}\pm\sqrt{\text{b}^2-4\text{ac}}}{2\text{a}}$
→Assertion : The values of $x$ are $-a^2,$ a for a quadratic equation $2 \times 2+a x-a^2=0$.
Reason : For quadratic equation $a \times 2+b x+c=0 \text{x}=\frac{-\text{b}\pm\sqrt{\text{b}^2-4\text{ac}}}{2\text{a}}$
HCF OF $\left(3^3 \times 5^2 \times 2\right),\left(3^2 \times 5^3 \times 2^2\right)$ and $\left(3^4 \times 5 \times 2^3\right)$ is
→A plane is observed to be approaching the airport. It is at a distance of $12\ km$ from the point of observation and makes an angle of elevation of $30^\circ$ there at. Its height above the ground is :
→The points $(-4, 0), (4, 0), (0, 3)$ are the vertices of a:
→If $A B C$ and $D E F$ are similar triangles such that $\angle A=47^{\circ}$ and $\angle E=83^{\circ}$, then $\angle C=$
→The first three terms of an $AP$ respectively are $3y - 1, 3y + 5$ and $5y + 1$. Then $y$ equals :
→The mean of 1, 3, 4, 5, 7, 4 is m. The number 3, 2, 2, 4, 3, 3, p have mean m – 1 and median q. Then p + q =