Ответ:
there are 1200 - 575 = 625 boys
the total pupils that like sport will be = girls that like sport + boys that like sport
(2/5)*575 + (3/5)*625 = 230 + 375 = 605 pupils like sports.
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Ответ:
there are 1200 - 575 = 625 boys
the total pupils that like sport will be = girls that like sport + boys that like sport
(2/5)*575 + (3/5)*625 = 230 + 375 = 605 pupils like sports.