Mathematics, 16.03.2022 23:50 azainababbas

At the start, a jar contains only quarters and coins of lesser value. The average value of these coins is $0.16. Adding a quarter to the jar raises this average value to $0.17. What is the probability that a coin randomly selected from the jar at the start is a quarter?

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At the start, a jar contains only quarters and coins of lesser value. The average value of these coi...