Both $$x$$ and $$y$$ are in direct proportional, then $$\dfrac{1}{x}$$ and $$\dfrac{1}{y}$$ are

neither in direct nor in inverse proportion.

sometimes in direct sometimes in inverse proportion.

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CBSE Questions for Class 8 Maths Direct And Inverse Proportions Quiz 2 - MCQExams.com

When the distance is kept fixed, speed and time vary directly with each other.

Explanation

False

The number of teeth and the age of a person vary

Assuming land to be uniformly fertile, the area of land and the yeild on it vary

Explanation

directly with each other

Both

x

$x$ and

y

$y$ are in direct proportional, then

\frac{1}{x}

$\dfrac{1}{x}$ and

\frac{1}{y}

$\dfrac{1}{y}$ are

x

$x$ varies inversely as squire of

y

$y$ . Given that

y = 2

$y=2$ for

x = 1

$x=1$ . The value of

x

$x$ for

y = 6

$y=6$ will be equal to :

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