2024 AMC 10B Problem 4
Problem 4 of 25EasierAlgebraNumber Theory
Balls numbered are deposited in bins, labeled and using the following procedure. Ball is deposited in bin and balls and are deposited in bin The next balls are deposited in bin the next in bin and so on, cycling back to bin after balls are deposited in bin (For example, balls numbered are deposited in bin at step of this process.) In which bin is ball deposited?
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Solution
Group holds balls, so the first groups swallow of them. Now and which puts ball in group (balls through ). The bins cycle so group lands in bin number For that’s bin Therefore, the answer is D.