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- 1. Multiple Choice
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.
- 2. Multiple Choice
-(-x) is same as
-x
x
1/x
-1/x
- 3. Multiple Choice
Addition is associative for
Natural numbers
Whole numbers
Rational numbers
All of these
- 4. Multiple Choice
Reciprocal of x is
-x
1/x
x+1
x
- 5. Multiple Choice
Additive identity of rational numbers is
1
-1
x
0
- 6. Multiple Choice
Rational numbers are not closed under
Subtraction
Division
Addition
Multiplication
- 7. Multiple Choice
The additive inverse of a/b is
-b/a
b/a
a/b
-a/b
- 8. Multiple Choice
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
- 9. Multiple Choice
Rational numbers are commutative for
Subtraction
Division
Addition and Subtraction
Addition and Multiplication
- 10. Multiple Choice
Which of these is a positive rational number?
- 11. Multiple Choice
Express in standard form
- 12. Multiple Choice
- 13. Multiple ChoiceThe multiplicative inverse of 0.7 is ____10⁄77⁄107⁄9Not defined
- 14. Multiple ChoiceIdentify the largest rational number among the following numbers3⁄314⁄3113⁄3127⁄31
- 15. Multiple ChoiceThe following number(s) are/is their own reciprocal1-11 and -10
- 16. Multiple Choice
Solve- 1/31/33/4not here - 17. Multiple ChoiceFind −2¼−3⅞1⅝−1⅝−6⅛
- 18. Multiple Choice
Find the value of
-6/13 ÷ 2/-39
6
-6
-9
9
- 19. Multiple Choice
From the rope 12m long, two pieces of length 13/5m and 33/10 m are cut off.what is length of the remaining rope?
6 1/10
5 1/10
13/10
None of these
- 20. Multiple Choice
Using properties of rational numbers find the value of
2/3 × 7/9 + 2/3 × 2/9
3/2
2/3
2/9
3/9
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