class 9 maths mcq

The periodicity of 4627.428571, is : 1. 4 2. 10 3. 6 4. 19

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The period in 690.384615, is : 1. 384615 2. 690 3. 690384615 4. 6

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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

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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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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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