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Test Series-06




Instructions

  • Your test contains 10 multiple choice questions with only one answer
  • This is 30 min test.Please make sure you complete it in stipulated time
  • You can Finish this test any time using 'Submit' button.
  • Once finished you get a chance to review all question with correct answers and their solutions.


1.Which of the following is terminating decimal expression?
  • 11/17
  • 15/1600
  • 29/343
  • 11/9

2) Which of the following is not a irrational number
  • √80
  • (√3-√7)(√3+√7)
  • √110
  • (√3 -√5)(√5-√3)

3. LCM(a,b)=48 and HCF( a,b) =4 then a and b can be ?
  • 12 and 16
  • 24 and 8
  • 32 and 6
  • None of these

4. If x and y are prime number then?
  • HCF (x,y) =y/x
  • LCM( x,y)= x/y
  • HCF(x,y) =1
  • None of these

5. Which one of these is false?
  • √110 is a real number
  • There are few rational number between √3 and 2
  • Irrational number are non terminating and non repeating
  • There are infinite irrational number between two rational number

6. if a =23X 5X 32 and b =22X 7X 33
  • LCM(a,b) =2520
  • HCF(a,b)=1260
  • LCM(a,b) =1260
  • a/b=5/7

7. Which of these are true
  • Sum of rational number and irrational number is always a irrational number
  • Sum of two irrational number is always a irrational number
  • Product of two irrational number is always a irrational number
  • Substraction of two irrational number is always a irrational number

8. Let a and b are two number and a > b. Then which of the following is true?
  • a=bq+r where 0 < r < b
  • a=bq+r where 0 < q < b
  • a=bq+r where 0 < b < r
  • a=bq+r where a < r < b

9. Which of these is False
  • 6n can end in zero for any n where n belongs to natural number
  • Every positive even number is of the form 2n and every odd number is of the form 2n+1 where n belongs to integer
  • Square of any positive integer can be written in form 3n or 3n+1 where n belongs to integer
  • None of these
    10.two statement Statement A: Every composite number can be represent as product of primes Statement B: There is only 1 even prime number
    • A is correct only
    • B is correct only
    • A and B both are correct
    • A and B both are incorrect



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