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Mathematics

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There are 21 plates of tomato sandwiches, 27 plates of cheese sandwiches, and 12 plates of beef sandwiches on a buffet table.

If a guest randomly picks a single plate, what is the probability that he gets tomato or cheese sandwiches?

Show your work.

Answer :

1999eva 1999eva

Today at 7:30 PM

the probability 21 plates of tomatoes+27 of cheese of 21+27+12 all
so he will choose 21+27/61=49/61=0.8=80%

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