SOLUTION: Katie brought some pens for $2.00 each and some pencils for $0.05 cents each. She brought twice as may pens as pencils and spent a total of $13.50. How many each did she buy ?

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Question 1134859: Katie brought some pens for $2.00 each and some pencils for $0.05 cents each. She brought twice as may pens as pencils and spent a total of $13.50. How many each did she buy ?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39623)   (Show Source): You can put this solution on YOUR website!
recheck the problem description.

p pens
L penciLs

Account for the cost:


Account for relation between pens and pencils:


-
Simple algebra between p and L,


Substitute into the cost equation:

-



, but this is not a whole number; and both L and p must be whole numbers.
Answer by ikleyn(52838)   (Show Source): You can put this solution on YOUR website!
.
Katie brought some pens for $2.00 each and some pencils for $0.05 cents each. She brought twice as may pens
as pencils and spent a total of $13.50. How many each did she buy ?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Please accept "my 2 pennies" to this problem. 

    I do not think that pencils might be priced at "$0.05 cents each."



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