recategorized by
547 views
1 votes
1 votes

A $100 \mathrm{~cm} \times 32 \mathrm{~cm}$ 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 $100 \mathrm{~cm} \times 1 \mathrm{~cm}$.

The total number of creases visible when the sheet is unfolded is ___________.

  1. $32$
  2. $5$
  3. $31$
  4. $63$
recategorized by

2 Answers

0 votes
0 votes
folds       crease total

1
0 votes
0 votes
fold  crease total  cm length

1            1          100:16

2            3          100:8

3            7          100:4

4            15        100:2

5            31        100:1          

ans is c 31
Answer: