Answers

2015-08-27T19:24:21+08:00
If 1km = 1000m, 1.5km = 1500m
  720 : 1500
  72 : 150 (divide by 10)
  36 : 75 (divide by 2)
  12 : 25 (divide by 3)
Therefore, the ratio of 720m to 1.5km is 12:25 or 12/25.
  
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