Difficulty Level: Easy
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In a 60 liter tub, the ratio of chocolate ice cream to vanilla is 2 : 1. If this ratio is to be 1 : 2, then the quantity of vanilla ice cream to be further added is:

  • 20 liters
  • 33 liters
  • 40 liters
  • 50 liters
  • 60 liters