Question: Marbles You have eight marbles that are exactly the same size, but one of them weighs slightly less than the others. You cannot tell the

Marbles You have eight marbles that are exactly the same size, but one of them weighs slightly less than the others. You cannot tell the difference by just holding them but you can use a scale like the one below. Can you find the lighter marble? How many weightings does your solution require? Try to reduce the number of weightings to the smallest possible number and explain your strategies

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