Question: You have 17 stacks of coins, each consisting of 10 quarters. One entire stack is counterfeit, but you don'tknow which one. You do know the weight of a genuine quarter, and you are also told that eachcounterfeit coin weighs one gram more than it should. You may weigh the coins on a pointer scale.What is the smallest number of weighings necessary to determine which stack is counterfeit?