tofu
Apr3-04, 01:29 PM
here it is
Of the 21 young girls auditioning for the role of Annie, 9 were good dancers who couldnot sing well enough, but 5 could sing and dance well. Assuming that all girls possessed at least one of these skills, how many girls must have been good singers w/ out dancing skills
Of the 21 young girls auditioning for the role of Annie, 9 were good dancers who couldnot sing well enough, but 5 could sing and dance well. Assuming that all girls possessed at least one of these skills, how many girls must have been good singers w/ out dancing skills