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Subjects
Mathematics CBSE
Class 8
Rational Numbers
Textbook Questions

17. Exemplar exercise problems V

Exercise condition:

3 m.

1. To get the product

$1$ , we should multiply

$\frac{8}{21}$ by

$\frac{21}{8}$
$\frac{-8}{21}$
$\frac{-21}{8}$
$\frac{8}{21}$

2.

$-(-x)$ is same as

$x$
$\frac{1}{x}$
$-x$
$\frac{-1}{x}$

3. If

$x$ be any rational number then

$x + 0$ is equal to

$0$
$-x$
not defined
$x$

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