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Real Numbers MCQs Class 8 with Answers. We covered all the Real Numbers MCQs Class 8 with Answers on our website for completely free.
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Class 8th Real Numbers MCQs with Answers for School Students
’48’ is the square root of :
1.844
2. 1444
3. 1764
4. 2304
Option 4 – 2304
If a group is to be an abelian, it should satisfy :
1. Commutative property
2. Multiplicative distributive property
3. Ordered properties
4. All of these
Option 1 – Commutative property
If the length and breadth of rectangular field a are in the ratio 4 : 3 and the area of the field is 1 hectare 2288 sq.mts, then its perimeter is :
1. 224 meters
2. 44.8 meters
3. 448 meters
4. 448 decimeters
Option 3 – 448 meters
The least natural number by which 1152 shall be multiplied to make it a perfect cube?
1. 6
2. 2
3. 8
4.16
Option 2 – 2
If the area of a square is 16 hectares, then the length of its side is ?
1. 4m
2. 400m
3. 40 m
4. 0.4 hectameter
Option 2 – 400m
If the area of a square shaped house site is 1225 sq.mts, then its perimeter, is?
1. 1400 decimeters
2. 14 meters
3. 14000 millimeters
4. 1400 meters
Option 1 – 1400 decimeters
Which of the following are irrational numbers?
1. All non-terminating and non-repeating decimals
2. All terminating but recurring decimals
3. All terminating decimals
4. 2 & 3
Option 1 – All non-terminating and non-repeating decimals
The set of irrational numbers is :
1. a finite set
2. an infinite set
3. a null set
4. a singlaton set
Option 2 – an infinite set
Which of the following is a transitive property?
1. For any tow rational numbers x, y only one of the fol lowing relations holds good (i) xy
2. If x, y, z are three rational numbers and if x>y; y>z then x>z
3. If x, y, z are three rational numbers and if xy+z
4. If x, y, z are three rational numbers and if x>y and z is a positive number, then xz>yz
Option 2 – If x, y, z are three rational numbers and if x>y; y>z then x>z
The no. of rational numbers that exist between any two rational numbers, is :
1. finite
2. infinite
3. zero
4. one
Option 2 – infinite
The property which a set of rational numbers have, is :
1. If x is a rational number, only one of the following is true (i) x<0 (ii) x=0 (iii) x>0
2. If x any y are any tow rational numbers, only one of the following is true (i) xy
3. x,y, z are three rational numbers. If x<y and y<z then x<z
4. All of the above
Option 4 – All of the above
The number whose multiplicative inverse is itself, is :
1. 0
2. 1
3. any rational number
4. None of these
Option 2 – 1
The set of numbers that possess the property of density, is :
1. Z
2. Q
3. R
4. 2 and 3
Option 4 – 2 and 3
If the denominator of a fraction in its lowest terms, has no other prime factors except 2 and 5, then :
1. it can be expressed as a terminating decimal
2. it can be expressed as a non-terminating but repeating decimal
3. it can be expressed as a non-terminating and non repeating decimal
4. all of these
Option 1 – it can be expressed as a terminating decimal
The period in 690.384615, is :
1. 384615
2. 690
3. 690384615
4. 6
Option 1 – 384615
The periodicity of 4627.428571, is :
1. 4
2. 10
3. 6
4. 19
Option 3 – 6
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