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Problems on L.C.M and H.C.F in Aptitude MCQ Quiz (Multiple Choice Questions And Answers)

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66. The G.C.D of 1.08, 0.36 and 0.9 is

  • 0.18
  • 0.03
  • 0.9
  • 0.108

67.  H.C.F of 3240, 3600 and a third number is 36 and their L.C.M is 24 * 35 * 52 * 72. The third number is:

  •  22 * 35 * 72
  • 22 * 53 * 72
  • 23 * 35 * 72
  • 25 * 52 * 72

68. Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are:

  • 12, 24, 36
  •  5, 10, 15
  • 4, 8, 12
  • 10, 20, 30

69. The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is:

  • 48
  • 24
  • 16
  • 12

70. The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above conditions is:

  • 6
  • 4
  •  8
  • 12