Math Club – December

Math Club – December

DIY Challenge 1: Cut the 10 unit gold bar

We have a gold bar of length 10. You have pay a person for 10 days.

At the end of 1st day, the person should have 1 unit.
At the end of 2nd day, the person should have 2 units.
……
At the end of 10th day, the person should have 10 units.

  • We are allowed to take back the some units which you gave on earlier days
  • At the end of any day, the total must be correct (coins equal to the day number)

Which all positions will you make the cuts on the gold bar? Maximum cuts allowed is 4.

Challenge: Can you do it in just 3 cuts?