Mathematics, 18.10.2020 06:01 noname61

The average age of 30 people running for election is 42. A 4th person joins the race and the average drops to 40. what is the 4th person's age

The average age of 30 people running for election is 42. A 4th person joins the race and the averag

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The average age of 30 people running for election is 42. A 4th person joins the race and the average...

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