March 24, 2015
Problem of the Week
for Tuesday, March 24, 2015
You are given ten bags of one-ounce gold coins. One of the bags happens to contain coins that are about 1/10 of an ounce lighter than the standard coin. How can you determine which bag contains the lighter coins if you are allowed to weigh any collection of coins one time on a digital scale. (Note: that each bag contains at least ten coins.)