Real Number Quiz 12

Question 1

Which of the following pair of numbers is co-prime ?

Accepted Answer

6 and 35

Answer

8 and 14

Answer

4 and 12

Answer

9 and 18

Question 2

Which of the following is not an irrational number ?

Accepted Answer

$\sqrt9$

Answer

$\sqrt2$

Answer

$ \sqrt3$

Answer

$\sqrt7$

Question 3

Which of the following is a rational number ?

Accepted Answer

$\frac{1}{3}$

Answer

$\sqrt2$

Answer

$\pi$

Answer

$\sqrt3$

Question 4

Which of the following four digit numbers is a perfect square such that the first two digits and the last two digits considered separately also represent perfect squares ?

Accepted Answer

1681

Answer

5462

Answer

8214

Answer

7210

Question 5

The solution of which equation is an irrational number ?

Accepted Answer

$x^2=\frac{49}{20}$

Answer

$\frac{1}{x}=\frac{3}{4}$

Answer

$\frac{1}{2}x+\frac{1}{5}=\frac{1}{3}$

Answer

$x^2=\frac{9}{16}$

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Real Number Quiz 12

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