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Вопрос 113

Which purchase has the lowest price per kilogram?

  1. 4.80 dollars for 1.2 kilogramsПравильный ответ
  2. 6.25 dollars for 1.25 kilograms
  3. 3.60 dollars for 0.8 kilogram
  4. 7.50 dollars for 1.5 kilograms

Объяснение

The unit prices are 4.80 ÷ 1.2 = 4, 6.25 ÷ 1.25 = 5, 3.60 ÷ 0.8 = 4.5, and 7.50 ÷ 1.5 = 5 dollars per kilogram. Comparing total prices alone would wrongly favour 3.60 dollars even though its quantity is also smaller.

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Вопрос 113: Which purchase has the lowest price per kilogram? · Decimals and Place Value · Questena