rock14324 rock14324

13-04-2021
Mathematics

contestada

A box contains 3 black pens, 7 blue pens and 5 red pens. Without replacing the first pen,
what is the probability of pulling a red or blue pen?

Respuesta :

jadamcgee36 jadamcgee36

13-04-2021

Answer:12/15

Step-by-step explanation: first you add 7+5=12

then add 12+3=15

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