Iris’ family is planning a surprise birthday party for her. The party will include her 3 uncles and 4 aunts who have a son and daughter each as well as her brother and mother. In total, how many people are coming to Iris’ birthday party?
How many people are in each of Iris’ aunts and uncles’ families? ** Each of her aunts and uncles have a family unit of 1 son + 1 daughter + 1 aunt/uncle = <<1+1+1=3>>3 people.
How many aunts and uncles are in Iris’ family? ** Iris has a total of 3 uncles + 4 aunts = <<3+4=7>>7 aunts or uncles in these family units.
How many people are in each of Iris’ aunts, uncles, and cousins? ** So among her aunts, uncles, and cousins, there will be 7 family units * 3 people in each family unit = <<7*3=21>>21 people.
How many people are coming to Iris’ birthday party? ** Including her mother and brother, there will be a total of 21 people + 1 mother + 1 brother = <<21+1+1=23>>23 people coming to her party.
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