math
posted by saida .
a piece of fabric measuring 32 cm by 15cm was required for each pupil in a year 8 DT lesson. what was the minimum length of 120 cm wide fabric required for 28 pupils?

Assuming no loss in the cutting, how would I would cut 3 strips of 32 cm long, each subdivided into 8 pieces of 15 cm wide. This will take care of 24 pupils.
For the remaining 4 students, we cut in the direction, giving an extra length of 30 cm. with some waste.
The total length is therefore
3*32+2*15=116 cm
If we had cut in the same direction for everyone, there will be more waste, with a total length of 4*32=128 cm.
Respond to this Question
Similar Questions

Math
Lisa bought two equal pieces of fabric. She will cut squares for a quilt from the fabric. All together Lisa bought 5 yards 1 foot of fabric. What is the length of each piece of fabric? 
Math
A quilter has 6 yards of fabric that is 54 inches wide. The fabric weighs 3.4 ounces per square yard. What is the total weight of the fabric? 
math
jodys has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. a)what is the area of the pieces of fabric? 
math
jodys has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. a)what is the area of the pieces of fabric? 
Math
jody has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. What is the area of the piece of fabric 
math
Mary has 7 1/4 yards of fabric. she cuts off 3/4 foot of fabric to make the edge even. Mary wants to end up with 3 pieces of fabric that are the same size. how long will each piece be? 
math
Jody has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. a=What is the area of the piece of fabric? 
Math Fraction
Bernadette cuts a piece of fabric into 4 peices of the same length. After she cut off 3 feet from one of the pieces, she is left with a piece that is 2 feet long. What is the length of the fabric she started with? 
Math
Bernadette cuts a piece of fabric into four pieces of the same length. After she cuts off 3 feet from one of the pieces, she is left with a piece that is 2 feet long. What is the length of the piece of a fabric she started with? 
Math
Jody has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. A. What is the Área of the piece of fabric?