Question Text
Question 2 :
If $\frac {4+3\sqrt 5}{\sqrt 5}=a+b\sqrt 5$ then, the value of b is
Question 4 :
State whether the statement is true (T) or false (F).<br/>The rational number $\dfrac{-8}{-3}$ lies neither to the right nor to the left of zero on the number line.
Question 7 :
Which of the following rational numbers lies between $0$ and $-1$?
Question 10 :
Which of the following rational numbers lies between $\dfrac {3}{2}$ and $4$ ?
Question 11 : <p>State whether the statements given are True or False</p><p>The rational number $\dfrac{-12}{-5}$ and $\dfrac{-7}{17}$ are on the opposite sides of zero on the number line.</p>
Question 13 :
Write the multiplicative inverse of each of the following rational numbers:<br/>$7$; $-11$; $\displaystyle\frac{2}{5}$; $\displaystyle\frac{-7}{15}$
Question 16 :
Five real numbers $x_1, x_2, x_3, x_4, x_5$ are such that: $\sqrt {x_1-1}+2\sqrt {x_2-4}+3\sqrt {x_3-9}+4\sqrt {x_4-16}+5\sqrt {x_5-25}=\dfrac {x_1+x_2+x_3+x_4+x_5}{2}$<br>The value of $\dfrac {x_1+x_2+x_3+x_4+x_5}{2}$ is<br>
Question 17 :
Choose the rational number which does not lie between rational numbers $ \displaystyle \frac{3}{5} $ and $ \displaystyle \frac{2}{3} $ :
Question 18 :
Given that $Q$ is a rational number:(i) Difference of two $Q$s is $Q$.(ii) Subtraction is commutative on $Q$.(iii) Addition is not commutative on $Q$.Which option is wrong?
Question 19 :
The value of $\dfrac {6}{11} \times \left [\left (\dfrac {-7}{6}\right ) - \left (\dfrac {11}{7}\right )\right ]$ is
