t2020
t2020 t2020
  • 15-07-2018
  • Mathematics
contestada

I need help on 78 and 79

I need help on 78 and 79 class=

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altavistard
altavistard altavistard
  • 17-07-2018

There are 15 pencils altogether. Of these, 4 are green. Thus, P(green) = 4/15.


3+6

There are 3 red and 6 blue pencils. Thus, P(red or blue) = --------- = 3/5

15

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