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Question 29

Which calculation does NOT correctly express 28 as a percentage of 80?

  1. 28 / 80 x 100
  2. 0.35 x 100
  3. 80 / 28 x 100Bonne réponse
  4. 28 x 100 / 80

Explication

The inverted calculation 80 / 28 x 100 gives about 285.71%, so it does not answer the stated comparison. Using 28 / 80 x 100 gives 35%, and the other valid forms are equivalent to that ratio.

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Question 29: Which calculation does NOT correctly express 28 as a… · Percentages · Questena