Wednesday, 31 July 2024

Class - 5 : Mock test - 2

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                                                                           Class - 5

          Time-30min                  MATH  (playing with number)                   F.M. - 20    

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1. Choose the correct option.   (5)

   a)  Determine which is odd number.

          i)  944              ii)  211              iii)  855

   b)   ___ is the only even prime number.

          i)  1                   ii)  2                 iii)  4

   c)   Two prime number with a difference of 2 are called  _______ prime.

          i)  Co-prime      ii)  Twin prime  iii)  None of these

   d)  86076  is divisible by 

          i)  3                   ii)  5                  iii)  7      

   e)  Product of tow number is 96. If  their  HCF is 4, find their LCM ___

           i)  22                 ii)  23                iii)  24 


2.   Find HCF by the listing method .       (1 1/2)

       63 and 36

3.  Find LCM by prime factorisation method  (1 1/2)

        42 , 36, 18

4.   Solve the following questions   94x3=12)

       a)  Four bells toll at intervals of 3,7,12,and 14 seconds. If they begin to toll together 

       at 5pm, when will they next toll together?

      

      b)  The  HCF and LCM  of two numbers are 12 and 72 respectively. If one of the                          number is 36, find the other.

  

      c)  Find the greatest possible length of a tape,  which can complete measure three ropes          measurig 42m, 35m and 105m.

     

     d)  Find the HCF by long division method.

             1216,  2400,  912


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