SOLUTION: If the price of gasoline increases by 20% and a person intends to spend only 8% more on gasoline, by how many percent should he reduce the quantity of gasoline that he buys?

Question 984892: If the price of gasoline increases by 20% and a person intends to spend only 8% more on gasoline, by how many percent should he reduce the quantity of gasoline that he buys?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The person has bought
gallon for price
The price for the gallon
goes up to
------------------------
Let = the number of gallons he needs to buy
The person wants to pay
The price/gal is
[ price/gal ]x[ gal ] = [ price ]

He must buy 10% less gasoline
----------------------------
check:

OK

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