Mathematics, 25.03.2020 18:47 stefancvorovic1
In a collection of 80 books, 34 have leather covers and 18 were published before 1850. If 42 of these books were published after 1850 and do not have leather covers, how many books were published after 1850 and have leather covers?
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In a collection of 80 books, 34 have leather covers and 18 were published before 1850. If 42 of thes...
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