SAT Math Multiple Choice Practice Question 426: Answer and Explanation

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Question: 426

9. Fifteen percent of the coins in a piggy bank are nickels and five percent are dimes. If there are 220 coins in the bank, how many are not nickels or dimes?

A. 80
B. 176
C. 180
D. 187
E. 200

Correct Answer: B


B If 20% of the coins are either nickels or dimes, 80% are neither. 80% of 220 equals 176. Use your calculator or write it out and solve:

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