Math 141, Sem. I, 1998-99 (R.A. Brualdi)
Handout 3 (September 11, 1998)
Topic: Quiz # 1 (10 points per problem)

1. On Friday, the stock market closed at 8750 points. If the percentage
changes for the week were:
  Monday, up 5%
  Tuesday, down 3%
  Wednesday, down 4%
  Thursday, up 7%
  Friday, down 2%,
what was the value of the stock market at the opening bell on Monday when
the week began?
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Scratch work - I will not read this.

















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Polished solution:



























2) An appliance store sells TVs at a profit of 8% of the selling price.
A 27" TV sells for $300.
   (a) What does the TV cost the store?
   (b) What percentage of the cost is the profit?
   (c) What should the price be if the store wanted the
        profit to be 50% of cost? 
    (d) What should the price be if the store wanted the
         profit to be 50% of selling price? 
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Scratch work - I will not read this.

















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Polished solution: