Important MCQs Variations Class 10 - 1

The post is about Multiple Choice Questions about Variations Class 10 from Chapter 3. There are 20 MCQs from Class 10 mathematics Chapter 3. Let us start with the quiz.

MCQs Variations Class 10 Mathematics

In a ratio $a:b$, $a$ is called
In a ratio $x:y$, $y$ is called
In a proportion $a:b::c:d$, $a$ and $d$ are called
In a proportion $a:b::c:d$, $b$ and $c$ are called
In continued proportion $a:b=b:c$, $ac=b^2$, $b$ is said to be ——— proportional.
In continued proportion $a:b=b:c$, $c$ is said to be —— proportional to $a$ and $b$.
Find $x$ in proportion $4:x::5:15$
If $u \propto v^2$ then
If $y^2 \propto \frac{1}{x^3}$ then
If $\frac{u}{v} = \frac{v}{2}=k$ then
The third proportional of $x^2$ and $y^2$ is
The fourth proportional $w$ of $x:y::v:w$ is
If $a:b=x:y$ then alternate is
If $a:b=x:y$ then inverted property is
If $\frac{a}{b}=\frac{c}{d}$ then components property is
The simplest form of the ratio $\frac{(x+y)(x^2+xy+y^2)}{x^3-y^3}$ is
Newton’s law of Gravitation is an example of
the relation between radius and circumference of a circle is an example of
If $\frac{24}{7}=\frac{6}{x}$ then $4x=$ ———.
If $\frac{5a}{3x} = \frac{15b}{y}$ then $ay=$ ———-.