Mathematics, 04.11.2019 20:31 caromaybelline71
Six people are standing in line for concert tickets. their average age is 27. the average age of the first four people in line is 23. the average age of the 3 people is 34. how old is the fourth person in line.
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Six people are standing in line for concert tickets. their average age is 27. the average age of the...
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