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CBSE Questions for Class 8 Maths Rational Numbers Quiz 6 - MCQExams.com

 Rational numbers between 38 and 712 are
  • 38,4196,2348,712
  • 38,41196,2348,712
  • 38,4196,23148,712
  • none of the above
Addition of rational numbers does not satisfy which of the following property?
  • Commutative
  • Associative
  • Closure
  • None
 ________ are rational numbers between 34 and 12.
  • 716,18,916
  • 1516,18,316
  • 716,18,316
  • none of the above
State TRUE or FALSE
The three rational number between 13 and 12 are 924,1024,1124.
  • True
  • False
State True or False.
The five rational numbers between 35 and 45 are 1930,2030,2130,2230,2330.
  • True
  • False
________ are rational numbers between 13 and 14

  • 13,764,1348,14
  • 13,724,1348,14
  • 13,724,1368,14
  • none of the above
Write the multiplicative inverse of each of the following rational numbers:
71125715
  • 17;111;52;157
  • 17;111;52;157
  • 17;111;52;157
  • 17;111;52;157
If A : Rational numbers are always closed under division and
R : Division by Zero is not defined, then which of the following statement is correct?
  • A is True and R is the correct explanation of A
  • A is False and R is the correct explanation of A
  • A is True and R is False
  • None of these
Find five rational numbers between 32 and 53.
  • 86,136,06,16 and 26
  • 86,76,06,16 and 136
  • 86,76,06,16 and 116
  • 86,76,06,16 and 26
Write any 10 rational numbers between 0and2.
  • 110,210,310,410,510,610,710,8810,910,1010
  • 110,210,310,410,2110,610,710,810,910,1010
  • 110,210,310,410,3510,610,710,810,910,1010
  • 110,210,310,410,510,610,710,810,910,1010
Which of the following alternatives is wrong? Given that
(i) difference of two rational numbers is a rational number
(ii) subtraction is commutative on rational numbers
(iii) addition is not commutative on rational numbers.
  • (ii) and (iii)
  • (i) only
  • (i) and (iii)
  • All the above
Which of the following statements is true?
  • The reciprocals 1 and 1 are themselves
  • Zero has no reciprocal
  • The product of two rational numbers is a rational number
  • All the above
Name the property of multiplication illustrated by
43×(65+87)=(43×65)+(43×87)
  • Associative property
  • Commutative property
  • Distributive property
  • None of these
Find the multiplicative inverse of the following:
131319 and 58×37
  • 113;1913;5615
  • 113;1913;5615
  • 113;1913;5615
  • 113;1913;5615
The multiplicative inverse of (13)2 is
  • 9
  • 19
  • 14
  • None of these
Choose the rational number which does not lie between rational numbers 35 and 23 :
  • 4675
  • 4775
  • 4975
  • 5075
Choose the rational number which does not lie between rational numbers 35 and 23
  • 4675
  • 4775
  • 4975
  • 5075
Find 3 rational numbers between 0 and 1.
  • 32,14 and 34
  • 12,14 and 34
  • 12,54 and 34
  • 12,14 and 74
Choose the rational number which does not lie between rational numbers 25 and 15
  • 14
  • 310
  • 310
  • 720
If D be subset of the set of all rational  numbers, then D is closed under the binary operations of ..............
  • addition, subtraction and division.
  • addition, multiplication and division.
  • addition, subtraction and multiplication.
  • subtraction, multiplication and division.
Find 9 rational numbers between 19and15.
  • 745,345,245,145,245,345,445,545,845
  • 445,345,245,145,1045,345,445,545,845
  • 445,345,245,145,245,945,445,545,845
  • 445,345,245,145,245,345,445,545,845
Choose the rational number which does not lie between rational numbers 25 and 15
  • 14
  • 310
  • 310
  • 720
Four rational number equivalent to 58 are:
  • 106,1224,2032,2540
  • 1016,1524,2032,2540
  • 1016,1524,832,2540
  • 816,1524,2032,2540
The value of 12×(13+49) is
  • 718
  • 12
  • 712
  • 724
For rational numbers ab and pq, where a,b,p,qQ and .............. condition exists, then they are closed under division.
  • b0,q1
  • b0,q0
  • b1,q1
  • b1,q0
Find the value of x in 43×[x+113]=43×811+43×113.
  • 811
  • 118
  • 43
  • 113
Simplify using associative property :
716×(2449×2815)
  • 2815
  • 25
  • 25
  • 315
Simplify using associative property :
89×(2732×821)
  • 27
  • 27
  • 821
  • 34
The value of 611×[(76)(117)] is
  • 1777
  • 1777
  • 11577
  • 11577
513+__=513
  • 0
  • 1
  • 513
  • 213
0:0:2


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