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Mathematics, 19.07.2019 16:00 TropicalFan

In a bag there are 9 cards, one for each number from 1 to 9. three cards will be drawn to make a 3-digit number. first, a card is drawn for the hundreds place and then put back in the bag. then, a card is drawn for the tens place and put back in the bag. lastly, a card is drawn for the ones place. how many different numbers can be drawn?

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In a bag there are 9 cards, one for each number from 1 to 9. three cards will be drawn to make a 3-d...
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