CBSE · Class 6-10

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Practice Test · Class 9

Number Systems

10 questions randomised from the chapter. Type each final answer and submit to see your score.

00:00

0/10 attempted

01

Simplify

\sqrt{45} + 3\sqrt{20} - 4\sqrt{5}

.

02

Evaluate

(3^{2/3})^{3/2}

.

03

Rationalise

\dfrac{1}{\sqrt 7 - \sqrt 6}

.

04

Find three rationals between

3/5

and

4/5

.

05

Simplify

2^{1/3}\cdot 2^{1/4}

.

06

Find two irrationals between

2

and

3

.

07

Prove

\sqrt 2

is irrational.

08

Is zero a rational number?

09

Express

0.\overline{3}

as

p/q

.

10

Rationalise

\dfrac{1}{2 + \sqrt 3}

.