MCQ
$\operatorname{LCM}(a, 18)=36 \operatorname{HCF}(a, 18)=2$ then $a=$ ..............
- A$2$
- B$3$
- ✓$4$
- D$1$
✓
Answer
Correct option: C.
$4$
$4$
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 $x = -y$ and $y > 0$, which of the following is wrong?
→The radius of spherical balloon increases from $8 \ cm$ to $12 \ cm$. The ratio of the surface areas of the balloon in two cases is
→Mark the correct alternative in the following:
Sum of $n$ term of the series $\sqrt{2}+\sqrt{8}+\sqrt{18}+\sqrt{32}+\ .....\text{ is}$
→Sum of $n$ term of the series $\sqrt{2}+\sqrt{8}+\sqrt{18}+\sqrt{32}+\ .....\text{ is}$
The angle of elevation of the top of a tower from a point on the ground, which is $30 m$ away from the foot of the tower is $45^{\circ}$. The height of the tower (in metres) is
→The smallest number by which $\sqrt{27}$ should be multiplied so as to get a rational number is
→$AP$ and $AQ$ are tangents drawn from a point $A$ to a circle with centre $O$ and radius $9\ cm$. If $OA = 15\ cm$, then $AP + AQ =$
→If $\text{x}=\text{a}\cos\theta\text{ and y}=\text{b}\sin\theta,$ then $b^2x^2+ a^2y^2=$
→If $x - y = 2$ and $\frac{2}{\text{x+y}}=\frac{1}{5}$ then:
→A game of chance consists of spinning an arrow on a circular board, divided into 8 equal parts, which comes to rest pointing at one of the numbers $1,2,3, \ldots ., 8$ as shown in the given figure which are equally likely outcomes. What is the probability that the arrow will point at a number which is less than 9 .
→The base and height of a triangle are in the ratio $3 : 4$ and its area is $216cm^2$. The height of the triangle is:
→