For the club, we bought two pieces of fabric of the same width to sew the same curtains on the windows.

For the club, we bought two pieces of fabric of the same width to sew the same curtains on the windows. The first piece had 27 m of fabric, and the second – 36 m. From the second piece they sewed 3 more curtains than from the first. How many curtains were sewn from each piece?

According to the condition of the problem:
the size of the first piece of fabric – 27 m;
the size of the second piece of fabric – 36 m;
the number of curtains from the second piece – 3 pcs. more than the first;
To find:
the number of curtains from each piece -?
Decision:
Let’s calculate how much fabric goes to one curtain:
1) 36-27 = 9
2) 9: 3 = 3
Let’s calculate how many curtains came out of the first piece of fabric:
3) 27: 3 = 9
Let’s calculate how many curtains came out of the second piece of fabric:
4) 36: 3 = 12 or 12 + 3 = 12
Answer: 9 curtains were made from the first piece of fabric, and 12 curtains were sewn from the second piece of fabric.