jayrobinson258
jayrobinson258 jayrobinson258
  • 16-08-2017
  • Mathematics
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musiclover10045
musiclover10045 musiclover10045
  • 16-08-2017



 if the order mattered it would be 7*6*5 *4*3 = 2520 arrangements


if order didn't matter

7*6*5*4*3*2 divided by (5*4*3*2*2) = 21

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