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Australian AMC 2017 - Intermediate Question 20

AMC AUSTRALIA · Australian AMC 2017 - Intermediate

Question 20

A cube of surface area X is sliced into two rectangular prisms. One of the prisms has surface area \(\frac 12 X\). What is the surface area of the other prism?

Question illustration
  1. \(\frac 14 X\)
  2. \(\frac 12 X\)
  3. \(\frac 23 X\)
  4. \(\frac 34 X\)
  5. \(\frac 56 X\)