melaAprikenzierryd melaAprikenzierryd
  • 27-03-2017
  • Mathematics
contestada

In a box of 20 pens, 4 of them are red, 10 are blue and rest are black what percentage of pens are black

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jahnavi955 jahnavi955
  • 27-03-2017
6 black pens are in box
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lissai
lissai lissai
  • 27-03-2017
10 + 4 = 14
20 - 14 = 6 (black)

6/20 simplified equals 3/10 or .33333
Answer Link

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