MathematicsFind the smallest square number which is divisible by each of the numbers 4, 9 and 10.

Find the smallest square number which is divisible by each of the numbers 4, 9 and 10.


  1. A
    400
  2. B
    200
  3. C
    900
  4. D
    520 

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    Solution:

    We have to find LCM of 4,9&10.
    So,
    4=2×2, 9=3×3, 10=5×2
    So, LCM= ×5=180
    Now, Using LCM we see that is 180 are multiplied by 5 then it will become a perfect square.
     required number =180×5=900.
     
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