MathematicsThe HCF of 45 and 105 is 15. Write their LCM.

The HCF of 45 and 105 is 15. Write their LCM.


  1. A
    315
  2. B
    220
  3. C
    451
  4. D
    312 

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    Solution:

    Given that HCF of 45 and 105 is 15.
    The expression that can be used to find the product of two numbers when its HCF and LCM are given is,
    Product of two numbers =HCF×LCM  .
    Then,
    ⇒45×105=15×LCM ⇒LCM= 45×105 15 ⇒LCM=315  
    The LCM of two numbers 45 and 105 is 315.
    Therefore, the correct answer is option (1).
     
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