Gold Bar Puzzle

By | August 11, 2017

Gold Bar Puzzle

Gold Bar Puzzle : You have got some work to be done for yourself. So, you hired an employee for yourself to get the job done. The employee will work for you for seven days and you need to pay a gold bar each day as his payment.

The gold bar is segmented into seven connected pieces. You must give him a piece of gold at the end of every day. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

gold bar puzzle for interview

As we suggest, please take some time to think before looking at the solution.

Its an easy solution.

Puzzle Solution:
Lets split the chain as,

gold bar cut puzzle

Day 1: Give A (+1)
Day 2: Get back A, give B (-1, +2)
Day 3: Give A (+1)
Day 4:Get back A and B, give C (-2,-1,+4)
Day 5:Give A (+1)
Day 6:Get back A, give B  (-1,+2)
Day 7:Give A (+1)

 

Hence, only 2 cuts are required.