The music teacher would like to have the same number of girls and of boys in the chorus. She finds that 5 8 of the chorus are girls but that if she can get 10 more boys, the chorus will have the same number of boys as of girls.
(a) How many students are in the chorus?
(b) If there are 178 children in the school, which unit fraction would you select to represent the fraction of students in the present chorus? (Round the number of students in the chorus to the nearest ten. Round the number of students in the school to the nearest hundred.)
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