Give the step-by-step reasoning process and then the final answer. Each bank teller has 10 rolls of coins. Each roll has 25 coins. How many coins do four bank tellers have in all?
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Each bank teller has 10 x 25 = 250 coins. Thus, four bank tellers have 250 x 4 = 1000 coins.
The final answer: 1000.
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