James has a board that is 3/4 foot long. He wants to cut the board into pieces that are 1/8 foot long. How many pieces can James
2 answers:
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Answer: 3
Step-by-step explanation:
Let E be the event of that student pierces ear and N be the event of that student pierces nose.
Given:
For any two event A and B, we have
Similarly ,
Hence, 3 students have piercings both on their ears and their noses.