KITYKAT KITYKAT

01-12-2016
Mathematics

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Can you help me understand this question? And what are they looking for?

Can you help me understand this question And what are they looking for class=

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01-12-2016

note the following steps
prpobability of not getting a black pen is 50/200
and the probability of not getting a red pen is 150/ 200.
Therefore add them together,
answer is 200/200. therefore 1 is the final answer.

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