<PRE><B>Question 109853</B>
A book store is having a sale. All hardback books are 20% off, and all paperbacks are 10% off. 
Suppose you buy four paperbacks that originally cost $9 each and two hardbacks that originally cost $20 each.
 What percent of the total cost have you saved? Round to the nearest percent. 
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Paperback savings:
# of books = 4 ; original cost = 4*9=36; savings = 0.10*36= 3.60
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Hardback savings:
# of books = 2 ;original cost = 2*20=40; savings = 0.20*40= 8.00
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Percent savings:
original total cost=$76
Total savings = $11.60
Percent savings: 11.60/76 = 0.1526..= 15.26%
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Cheers,
Stan H.



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