Balance Power

Stage: 3, 4 and 5 Challenge Level: Challenge Level:1

scales
You can weigh all integer masses from 1 to 60 with 6 weights putting the weights in one pan and the object in the other pan. Which weights are used?

What about weighing all integer masses from 1 to 1000 or from 1 to n?

How many weights are needed if you put weights in both pans?


Published March 2008,April 2008.