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1
The rationalisation factor of is.
2
Which one of the following is a rational number ?
0
3
Which of the following number is different from others ?
4
The decimal representation of a rational number is ______________________.
Always terminating
Either terminating or repeating
Either terminating or non-repeating
Nither terminating nor repeating
5
Express each of the following decimal numbers in the form : 8.0025
6
Express 0.750 decimal in the form
7
If x is a positive real number and
8
The decimal equivalent of is ___________________
0.3
0.31
0.312
0.3125
9
The whole number that does not have a predecessor is ______________.
100
10
The ratio of the circumference of a circle to the diameter of the circle is :
a rational numbers
a whole number
an integer
an irrational number
11
If a number can-not be expressed in the form of where ,p,q are coprime, such a number is.
Rational no
Integers
Irrational no
Fractions
12
If and the value of on simplifying is
0.645
0.643
0.655
0.755
13
If , then equals
14
Express each of the following numbers in the form : 0.00026
15
The value of is
16
If a=2+ and b=2- then is equal to
-14
-8
17
Which of the following fractions will you get on rationalizing the denominator of ?
18
If ,then a=
-5
-6
-4
-2
19
The value of is :
25
20
-20
If then the value of is
194
196
198
200