Mathematics, 13.07.2019 21:30, missdee6929
Last year , there were 30 male members and 20 female members in a chess club . this year , the number of male members is decreased by r% while the number of female members is increased by r% . if the number of male members is equal to that of female members this year , find the value of r .can anyone explain to me ? thks \(> ∀< )/
Answers: 1
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Last year , there were 30 male members and 20 female members in a chess club . this year , the numbe...
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