posted by saida on .
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
If we had cut in the same direction for everyone, there will be more waste, with a total length of 4*32=128 cm.