mathematics: in a house there are 20 children. 12 of them eat rice why 10...
mathematics: in a house there are 20 children. 12 of them eat rice why 10...
mathematics: in a house there are 20 children. 12 of them eat rice why 10 of them eat beans. 3 of them do not eat any of the two food items. how many of the children eat both rice and beans?
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