Middle School

Welcome to the article A box contains 150 black pens and 50 red pens Jose said the sum of the probability that a randomly selected pen will not be. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!

A box contains 150 black pens and 50 red pens. Jose said the sum of the probability that a randomly selected pen will not be black and the probability that the pen will not be red is 1. Explain whether you agree.

Answer :

Box contains = 150 Black pens and 50 red pens
Ratio = black pen : red pen
150 : 50
dividing both sides by 50
3 : 1
The ratio is 3 black pens for 1. Jose said wrong. OmG jose is a liar! xD

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Rewritten by : Brahmana

I don't agree the probability
Is a 3:1 ratio
Because the black pen amount is triple the red pen amount