Mathematics, 20.09.2021 06:50, vtrvfrfvrvfvnkjrf

In a competition a school awarded medals i different categories, 36 medals in dance, 12 medals in dramatics and 18 medals in music. If these medals went a total of 45 persons and only 4 persons got medals in all thr three categories, hk many received medals in exactly two of these categories?

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In a competition a school awarded medals i different categories, 36 medals in dance, 12 medals in dr...