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After a square sheet is folded along a diagonal, one hole is punched in the middle of the triangle and one exactly on the slanting fold. How many holes does the opened sheet have?

Competition practicePaper Folding & Punching
  • A3
  • B4
  • C2
  • D6

Step-by-Step Solution

The hole inside the triangle goes through 2 layers: 2 holes. The hole on the fold opens as a single hole on the diagonal. Total .
Answer: A) 3

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