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Two standard dice (opposite faces add up to 7) are placed one on top of the other on a table. What is the total number of dots on the faces that are hidden from view?

Competition practiceDice & Cubes
  • A18
  • B28
  • C21
  • D24

Step-by-Step Solution

Two dice carry dots. Visible: top 6, upper die sides 2 and 4, lower die sides 5 and 1: . Hidden . (18 is the visible total.)
Answer: D) 24

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