You have ten sets of 10 coins.

Coin puzzle interview question.

There are 10 stacks of 10 coins each where each coin weighs 10gms. Exactly 10 of them have heads facing up. In a dark room where there is no light at all 35 coins are scattered on a table. Eventually we ll get 55 1 2 3 9 10 coins. Puzzle 1 find the faulty coin you have ten stacks of ten coins each and each of them weighs 10 gm. Now weigh all the 55 coins together.

Faulty coins interview question. Critical thinking puzzle. Take 1 coin from the first bag 2 coins from the second bag 3 coins from the third bag and so on. It s an amazon interview question. This is another tricky puzzle asked commonly during analytics based interviews. As per the puzzle you have 20 coin machines each of which produce the same kind of coin.

However one of the stacks is defective and that stack contains coins which weigh 9gms. Software engineer interview cupertino ca. Depending on the resulting weighing machine reading you can find which bag has the forged coins such that if the reading ends with 0 4 then it is the 4th bag if it ends with 0 7 then it is the 7th bag and so on. Then he shuts the mouth of the bottle with the help of a cork. 10 of them are heads up 90 are tails up. This is another coin puzzle.

You are allowed to touch the coins but can t tell which way up they are by feel. You know how much a coin is supposed to weigh. To solve this problem the trick lies in creating a weighted stack for measurement which will enable the candidate to identify the defective stack in. You are blindfolded and 10 coins are place in front of you on table. You are told that there are 5 coins head up and 5 coins tails up but not which ones. You can t feel see or in any other way find out which side is up.

He puts a coin in a glass bottle. Coin and glass interview question. You are aware of exactly how much the coins weigh. How can you determine which of the 20 machines is defective with only one. Ias interview puzzle. Determine the minimum number of weights needed to identify the defective stack.

What is the question. Now he manages to remove the coin out from the bottle without taking out the cork or breaking the glass bottle. A guy claims to do the following thing. You can only ask one question to one of them in order to find the way to heaven. You also have an electronic weighing machine. This puzzle can be shown to your firends with the help of some loose change in your pocket such kind of puzzles you can face during a job interview more and.

You know one of them always tells the truth and the other always lies but you don t know who is the honest one and who is the liar. One of the machines is defective in that every coin it produces weighs 1 ounce less than it is supposed to. Split the coins into two piles such that there are the same number of heads in each pile. Apple you have a 100 coins laying flat on a table each with a head side and a tail side.