ryasn8099 ryasn8099
  • 07-02-2024
  • Mathematics
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Assuming the balls to be identical except for difference in colours, the number of ways in which one or more balls can be selected from 10 white, 9 green and 7 black balls is
(1) 880
(2) 629
(3) 630
(4) 879

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can someone please help me solve this
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