Difference between revisions of "1986 AJHSME Problems/Problem 15"
5849206328x (talk | contribs) (New page: ==Problem== Sale prices at the Ajax Outlet Store are <math>50\% </math> below original prices. On Saturdays an additional discount of <math>20\% </math> off the sale price is given. Wha...) |
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==Solution== | ==Solution== | ||
| − | {{ | + | First we need to do the first discount, which, at Ajax Outlet Store, would be there any day of the week. |
| + | |||
| + | <math>180 \times 50\% = 180 \times \frac{1}{2} = 90</math> | ||
| + | |||
| + | Then we factor in the <math>20\%</math> discount. | ||
| + | |||
| + | <math>90 \times 20\% = 90 \times \frac{2}{10} = 9 \times 2 = 18</math> | ||
| + | |||
| + | Thus it would cost <math> \</math>18$ dollars! | ||
==See Also== | ==See Also== | ||
[[1986 AJHSME Problems]] | [[1986 AJHSME Problems]] | ||
Revision as of 18:18, 24 January 2009
Problem
Sale prices at the Ajax Outlet Store are 
below original prices. On Saturdays an additional discount of 
off the sale price is given. What is the Saturday price of a coat whose original price is <dollar/>
?
<dollar/>
<dollar/>
<dollar/>
<dollar/>
<dollar/>
Solution
First we need to do the first discount, which, at Ajax Outlet Store, would be there any day of the week.
Then we factor in the discount.
Thus it would cost 
18$ dollars!
