Mathematics, 15.02.2021 17:30 zmeister
Box A contains pens. 20% red, 50% blue and the rest are black.
box B contains pencils , 15% are blue , 50% are red and 35% are black.
Jack takes a pen from box A and a pencil from box B
What is the probability that Jack takes a pen and a pencil of different colours ?
Answers: 3
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Box A contains pens. 20% red, 50% blue and the rest are black.
box B contains pencils , 15% are blu...
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