Answer :
Final answer:
To find the number of envelopes that can be made from a sheet of paper, we divide each dimension of the paper by the corresponding envelope dimension and multiply the results together. From a 72 cm by 48 cm sheet of paper, 16 envelopes of 18 cm by 12 cm can be made.
Explanation:
To solve this problem, we need to determine how many small rectangles of size 18 cm by 12 cm can fit into a larger rectangle of size 72 cm by 48 cm. To do this, we divide the dimensions of the larger sheet by the dimensions of the smaller envelope size.
- First, let's calculate how many 18 cm widths can fit in the 72 cm side of the paper:
72 cm ÷ 18 cm = 4 - Next, calculate how many 12 cm lengths can fit in the 48 cm side of the paper:
48 cm ÷ 12 cm = 4
By multiplying the number of widths by the number of lengths, we get the total number of envelopes that can be made:
4 widths × 4 lengths = 16 envelopes
Therefore, the answer is c) 16.
