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CEMC Gauss (Grade 8), 2005

Algebra Difficulty 3.0 AMC 10/12 Find the answer Canada

A purse contains a collection of quarters, dimes, nickels, and pennies. The average value of the coins in the purse is $17$ cents. If a penny is removed from the purse, the average value of the coins becomes $18$ cents. How many nickels are in the purse?

(A) $2$ (B) $5$ (C) $0$ (D) $1$ (E) $8$

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