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Home Aptitude HCF and LCM See What Others Are Saying!
  • Question
  • A room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in Width. Find the least number of square tiles of equal size required to cover the entire floor of the room.


  • Options
  • A. 107
  • B. 117
  • C. 127
  • D. 137

  • Correct Answer
  • 117 

    Explanation

    Let us calculate both the length and width of the room in centimeters.

    Length = 6 meters and 24 centimeters = 624 cm

    width = 4 meters and 32 centimeters = 432 cm

    As we want the least number of square tiles required, it means the length of each square tile should be as large as possible.Further,the length of each square tile should be a factor of both the length and width of the room.

    Hence, the length of each square tile will be equal to the HCF of the length and width of the room = HCF of 624 and 432 = 48

    Thus, the number of square tiles required = (624 x 432 ) / (48 x 48) = 13 x 9 = 117


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      The value of 47 / 10000 is?

    • Options
    • A. .0047
    • B. .0470
    • C. .00047
    • D. .000047
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    • 2. If 4x = 18y, then the value of ( x/y - 1) is

    • Options
    • A. 1 3
    • B. 7 2
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    • 3. 
      If the price of 23 toys is Rs. 276, then what will the price (Rs.) of 12 toys?

    • Options
    • A. 144
    • B. 158
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    • 4. 
      .02 =(......?.....)%

    • Options
    • A. 20
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    • 5. 
      If 36 men can do a piece of work in 25 hours, in how many hours will 15 men do it?

    • Options
    • A. 45
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    • 6. 
      2?63 / 11 =233

    • Options
    • A. 4
    • B. 3
    • C. 6
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    • 7. 
      When 121012 is divided by 12, the remainder is

    • Options
    • A. 0
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      Aarti can do a piece of work in 6 days. In how many days will she complete three time of work of same type?

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    • Options
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    • Options
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