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15 questions
A number of the form p/q is said to be a rational number if
p and q are integers
p and q are integers and p is not equal to zero.
p and q are integers and q is not equal to zero.
and q are integers and p and q both are not equal to zero.
-(-x) is same as
-x
x
1/x
-1/x
Addition is associative for
Natural numbers
Whole numbers
Rational numbers
All of these
Between any two rational numbers, there lie
two rational numbers
no rational number
infinite rational numbers
infinite fractions
If x be any rational number, than x+0 is
-x
0
x
1/x
Reciprocal of x is
-x
1/x
x+1
x
If y be the reciprocal of rational number x, then the reciprocal of y will be
x
y
x/y
y/x
Additive identity of rational numbers is
1
-1
x
0
Rational numbers are not closed under
Subtraction
Division
Addition
Multiplication
The additive inverse of a/b is
-b/a
b/a
a/b
-a/b
Reciprocal of 0 is
1
-1
0
Not defined
1 (one) is
the identity for addition of the rational number
the identity for subtraction of the rational number
the identity for multiplication of the rational number
the identity for division of the rational number
Which of the following is not a rational number?
-2/3 , 1/8 , 0 ,18 , 54
18 and 54
-2/3 and 1/8
0
All are rational numbers
The product of two rational numbers is always a
Natural number
Rational number
Whole number
Integer
Rational numbers are commutative for
Subtraction
Division
Addition and Subtraction
Addition and Multiplication
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