5th Grade Number System – Set 1

Question 1

Which of the following is an irrational number?

Accepted Answer

3.14141414…...

Answer

3.14

Answer

$3.\overline{14}$

Answer

$3.1\overline{4}$

Question 2

Which of the following is a rational number?

Accepted Answer

$\sqrt{225}$

Answer

$\sqrt{2}$

Answer

$\sqrt{23}$

Answer

0.1010010001…….

Question 3

Every rational number is-

Accepted Answer

A real number

Answer

A natural number

Answer

A whole number

Answer

An integer

Question 4

The product of two irrational numbers is-

Accepted Answer

sometimes rational and same time irrational

Answer

always irrational

Answer

always rational

Answer

always an integer

Question 5

The decimal expression of $\sqrt{2}$ is

Accepted Answer

non-terminating non-recurring

Answer

finite decimal

Answer

1.4121

Answer

non-terminating recurring

Question 6

When $15\sqrt{15}$ is divided by $\sqrt[3]{3}$ find the quotient.

Accepted Answer

$5\sqrt{3}$

Answer

$3\sqrt{5}$

Answer

$5\sqrt{5}$

Answer

$3\sqrt{3}$

Question 7

Can we write 0 in the form of $\frac{p}{q}$?

Accepted Answer

yes

Answer

No

Answer

Can not be explained

Answer

None of the above

Question 8

$3\sqrt{6}+4\sqrt{6}$ is equal to

Accepted Answer

$7\sqrt{6}$

Answer

$6\sqrt{6}$

Answer

$4\sqrt{12}$

Answer

$7\sqrt{12}$

Question 9

Which of the following is a true sentence?

Accepted Answer

π is irrationals and $\frac{22}{7}$ is rational

Answer

π and $\frac{22}{7}$ are both rationals

Answer

π and $\frac{22}{7}$ are both irrationals

Answer

π is rational and $\frac{22}{7}$ is irrationals

Question 10

Between any two rational numbers there is

Accepted Answer

infinitely many rational numbers

Answer

no rational number

Answer

exactly one rational number

Answer

no irrational numbers

CHAPTER-1 NUMBER SYSTEM (SET-1)

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