One out of three identical coins is fake. We know that the fake coin is a different weight from the real coins. Using a scale, what is the minimum number of weighing

You have 9 coins, and one of them is counterfeit (it weighs less than the others). How do you find the counterfeit coin using 2 weighings? - Quora

You have eight coins. They all look identical, but one is a fake

You have 28 coins, one of which is fake. In how many weighings can

One out of three identical coins is fake. We know that the fake coin is lighter than the other two. Using a scale, what is the minimum number of weighings needed to

Counterfeit gold coins Riddle

You have 10 bags of coins, each containing 100 coins. Nine bags

Among the [math]25[/math] coins, there are exactly [math]2[/math

Advanced fake-coin problem There are n 2 3 coins

You have eight coins. They all look identical, but one is a fake

There are 101 coins out of which 1 is fake, the fake coin is