Respuesta :

There were 15 crocodiles in the watering hole.

Since the ratio of the number of hippos to the number of crocodiles at a watering hole is 4:3, to show the number of crocodiles if there were 20 hippos, the following cross multiplication calculation must be performed:

  • Hippos 4: 3 crocodiles
  • Hippos 20: X crocodiles
  • 4 = 20
  • 3 = X
  • 3 x 20/4 = X
  • 60/4 = X
  • 15 = X

Therefore, there were 15 crocodiles in the watering hole.

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