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  1. #1
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    coin problem

    Your friend found $8.25 in pennies, nickels, dimes and quarters while walking home from school one week. When depositing, she noticed she had twice as many nickels as pennies, 1 fewer dime than nickels, and 1 more quarter than nickels. How many quarters did she have?

    Why is it 21??
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  2. #2
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    Quote Originally Posted by dannyc View Post
    Your friend found $8.25 in pennies, nickels, dimes and quarters while walking home from school one week. When depositing, she noticed she had twice as many nickels as pennies, 1 fewer dime than nickels, and 1 more quarter than nickels. How many quarters did she have?

    Why is it 21??
    p(.01) + n(.05) + d(.10) + q(.25) = 8.25

    p + 5n + 10d + 25q = 825

    p = n/2 , d = n-1 , q = n+1

    (n/2) + 5n + 10(n-1) + 25(n+1) = 825

    solve for n ... then determine the value of q = n+1
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