A boy has a collection of 20 pennies, 8 nickels, 10 dimes and 15 quarters. How many
Chapter 8, Problem 12(choose chapter or problem)
A boy has a collection of 20 pennies, 8 nickels, 10 dimes and 15 quarters. How many coins must the boy take from his collection to be certain that he has (a) 12 coins of the same kind? (b) 10 pennies, 5 nickels, 6 dimes or 8 quarters? (c) 15 pennies, 10 nickels, 12 dimes or 8 quarters?
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