Mathematics · Permutations and Combinations
A 100 cm × 32 cm rectangular sheet is folded 5 times. Each time the sheet is folded, the long edge aligns with its opposite side. Eventually, the folded sheet is a rectangle of dimensions 100 cm × 1 cm. The total number of creases visible when the sheet is unfolded is _______.
- 163
- 231✓
- 35
- 432
Correct answer
31
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