Robert has 12 coins totaling $1.45. None of his coins is larger than a quarter. Which of the following cannot be the number of quarters he has?

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asked Mar 11, 2015 89.0k views

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Dennism · Answer 1 · 2015-03-17T23:55:39+0000

The correct answer is 1 because coin • number = total value. When p = the number of pennies, n = the number of nickels, d = the number of dimes, q = the number of quarters. The total number of coins = p+ n+ d+ q = 12. But if q = 1 then p+ n+ d = 11

Robert has 12 coins totaling $1.45. None of his coins is larger than a quarter. Which of the following cannot be the number of quarters he has?

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