Number Of CurtainsLogic Level 2
A cloth cutting machine makes 9 cuts on a one meter long cloth in 20 seconds. Each piece of cloth is used to make curtains. At time 0 the machine starts working, at 40 seconds how many pieces of cloth are ready to be turned into curtains?
Details and Assumptions:
- No time is wasted in keeping a new cloth onto the machine. it is kept in a moment.