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Source: Manhattan Prep
Sarah is in a room with 6 other children. If the other children are 2, 4, 5, 8, 10, and 13 years old, is Sarah 7 years old?
1) The age of the fourth oldest child is equal to the average (arithmetic mean) of the seven children's age
2) Sarah is not the oldest child in the room
The OA is C
Sarah is in a room with 6 other children. If the other children are 2, 4, 5, 8, 10, and 13 years old, is Sarah 7 years old?
1) The age of the fourth oldest child is equal to the average (arithmetic mean) of the seven children's age
2) Sarah is not the oldest child in the room
The OA is C
