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Mathematics, 30.08.2019 21:00 jkemail19

Azoo train ride costs $4 per adult and $1 per child. on a certain day, the total number of adults (a) and children (c) who took the ride was 27, and the total money collected was $60. what was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers?
11 children and 16 adults
equation 1: a + c = 27
equation 2: 4a + c = 60
16 children and 11 adults
equation 1: a + c = 27
equation 2: 4a + c = 60
11 children and 16 adults
equation 1: a + c = 27
equation 2: 4a − c = 60
16 children and 11 adults
equation 1: a + c = 27
equation 2: 4a − c = 60

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