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Q: What is the greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm?

  • 1
    10 cm
  • 2
    30 cm
  • 3
    25 cm
  • 4
    20 cm
  • Show Answer
  • Workspace

Answer : 4. "20 cm"
Explanation :

Changing the unit in cm-800 cm, 420 cm, 1220 cm

Taking H.C.F=20 cm 

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