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Q: Three numbers are in the ratio of 3:4:5 and their L.C.M is 3600.Their HCF is:

  • 1
    40
  • 2
    60
  • 3
    100
  • 4
    120
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Answer : 2. "60"
Explanation :

Answer: B) 60 Explanation: Let the numbers be 3x, 4x, 5x.   Then, their L.C.M = 60x.   So, 60x=3600 or x=60.   Therefore,  The numbers are (3 x 60), (4 x 60), (5 x 60).   Hence,required H.C.F=60

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