Algebra in 3 minutes

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Comment to: lawrence@carol.net

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© David Lawrence 2000

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Learn the basics of Algebra in 3 minutes
See if you can folow the question below and how we deal with it.


Question 8:

Here's something slightly different. It comes from a Day Calendar entitled '365 Brain Puzzles' by Dr. Abbie F. Salny.

Jennifer went shopping for birthday presents.
She spent half of what she had, plus $5, for a blouse;
then half of what was left, plus $5, for a cookbook;
then half of what was left, plus $5, for stationery.
Jennifer had nothing left. How much did she start with?

If you got confused with all the text you could make a rough sketch or chart. This may help you to see it clearer.

Tip: Let 'x' equal the total money Jennifer spent.

The equation can be:

'x' = Cost of the blouse + Cost of the cookbook + Cost of the stationery

 

If you really don't know how to start click here for help.

 

Click on the answer below you believe is the correct one

Answer to question 8:

'A' - $70

'B' - $80

'C' - $90

'D' - $93.67


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