model test

which of the following is not a rational number?

• $0.\overline{2}$
  

• 0

• 0.001

• 0.010010001.......

additive inverse of a-b

• a-b

• b-a

• -a-b

• a+b

number of rational numbers between 1 and 2 ?

• infinite

• only one

• 0

• finite

a rational between a and b is......

• $\frac{a-b}{2}$

• $\frac{a+b}{2}$

• $a+b$
  

• $a-b$

if  $x<0$  ,  then    $\left|x\ \right|\ \ \ =$  

•  $x$  

•  $-x$  

•  $\pm x$  

•  $none$  

 $\left(-3\right)\ \ \div\ x\ =\ \ -2$  then x  is -----

•  $\frac{3}{2}$  

•  $\frac{2}{3}$  

•  $\frac{-3}{2}$  

•  $\frac{-2}{3}$  

 $\ The\ reciprocal\ of\ \ \ \left(\frac{2}{5}\right)\ \times\left(\frac{-4}{9}\right)$  

the reciprocal of

•  $\frac{8}{45}$  

•  $\frac{45}{8}$  

•  $\frac{-8}{45}$  

•  $\frac{45}{-8}$  

 $\ \ if\ \ \frac{7}{9}\ =\frac{x}{45}\ \ then\ \ x\ is\ .....$  

• 14

• 35

• 27

• 42

which of the following is true ?

• $3^{0\ \ }=\ 3$

• $\left(5^3\right)^{0\ }=\ \ 1$

• $\left(5^{0\ }-\ 3^0\right)\ \times\ 2^{0\ }\ \ =1$

• $\left(\ 25\ \right)^3\ \ =\ \ 5^5$

The number 3333333333 is divisible by ...

• 3

• 11

• both 3 and 11

• none