Rational Numbers Quiz 1

Question 1

Which of the following is equivalent to $$\left| {\dfrac{{ - 7}}{{13}}} \right|$$

Accepted Answer

$$\dfrac{7}{{13}}$$

Answer

$$\dfrac{{ - 7}}{{13}}$$

Answer

$$\dfrac{{13}}{7}$$

Answer

None of these

Question 2

Additive inverse of $$\left( {\dfrac{{ - 7}}{{ - 8}}} \right)$$ is:

Accepted Answer

$$\left( {\dfrac{{ - 7}}{8}} \right)$$

Answer

$$\left( {\dfrac{7}{8}} \right)$$

Answer

$$\left( {\dfrac{8}{7}} \right)$$

Answer

$$\left( {\dfrac{8}{{ - 7}}} \right)$$

Question 3

Which of the following is equal to the multiplicative inverse of $$ - \dfrac{a}{b}$$.

Accepted Answer

$$ - \dfrac{b}{a}$$

Answer

$$\dfrac{a}{b}$$

Answer

$$ - \dfrac{a}{b}$$

Answer

$$\dfrac{b}{a}$$

Question 4

Which of the following is not a rational number?

Accepted Answer

$$\pi $$

Answer

$$\dfrac{{27}}{3}$$

Answer

$$ - 7$$

Answer

None of these

Question 5

The product of $$\dfrac{{36}}{{343}}$$ and multiplicative inverse of $$\dfrac{6}{7}$$ is:

Accepted Answer

$$\dfrac{6}{{49}}$$

Answer

$$\dfrac{6}{{343}}$$

Answer

$$\dfrac{{343}}{7}$$

Answer

None of these