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A rifleman is firing at a distance target and has only 10% chance of hitting it. Then the number of rounds, he must fire in order to have more than 50% chance of hitting it at least once is: |
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Answer» A rifleman is firing at a distance target and has only 10% chance of hitting it. Then the number of rounds, he must fire in order to have more than 50% chance of hitting it at least once is: |
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