class 9 maths chapter 1 mcq with answers

The set of numbers that possess the property of density, is : 1. Z 2. Q 3. R 4. 2 and 3

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The number whose multiplicative inverse is itself, is : 1. 0 2. 1 3.  any rational number 4. None of these

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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

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The no. of rational numbers that exist between any two rational numbers, is : 1. finite 2. infinite 3. zero 4. one

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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

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The set of irrational numbers is : 1. a finite set 2. an infinite set 3. a null set 4. a singlaton set

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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

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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

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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

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The least natural number by which 1152 shall be multiplied to make it a perfect cube? 1. 6 2. 2 3. 8 4.16

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