Question: i don't understand this set notation question, i'm not sure how to format it . A men's magazine surveyed 600 readers about their facial hair.

i don't understand this set notation question, i'm not sure how to format it

. A men's magazine surveyed 600 readers about their facial hair. - 85 had a moustache - 49 had a beard - 483 were clean shaven How many men had a beard and a moustache? Write your answer in set notation. (1 mark)

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