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Home Aptitude HCF and LCM See What Others Are Saying!
  • Question
  • A rectangular courtyard 3.78 meters long 5.25 meters wide is to be paved exactly with square tiles, all of the same size. what is the largest size of the tile which could be used for the purpose?


  • Options
  • A. 14 cms
  • B. 21 cms
  • C. 42 cms
  • D. None of these

  • Correct Answer
  • 21 cms 

    Explanation

    3.78 meters =378 cm = 2 × 3 × 3 × 3 × 7

    5.25 meters=525 cm = 5 × 5 × 3 × 7

    Hence common factors are 3 and 7

    Hence LCM = 3 × 7 = 21

    Hence largest size of square tiles that can be paved exactly with square tiles is 21 cm.


  • More questions

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      A chocolate has 12 equal piece. Monju gave 1/4 th of it to Anju, 1/3 rd of it to Sujata and 1/6 th of it to Fiza. The number of piece of chocolate left with Manju is?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 2. 
      Third power of 4 is equivalent to :

    • Options
    • A. 64
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    • C. 12
    • D. 49
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    • 3. 
      What number should be added to 231228 to make it exactly divisible by 33?

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    • A. 1
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    • 4. 
      The probability of drawing a red card from a deck of playing cards is

    • Options
    • A. 2/18
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      [1/(1.2.3)] + [1/(2.3.4)] + [1/(3.4.5)] + [1/(4.5.6)] is equal to

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    • 7. 
      30% of 80/? = 24

    • Options
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    • Options
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