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0 / 60 seg.
Ben walked into a hardware store and asked the price of some items. The salesman said: One costs $1, Eight costs $1, Seventeen cost $2, One hundred four costs $3 and One thousand seventy two costs $4. What was Ben buying?
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Clue
$45. THE PRICING METHOD CONSISTS OF CHARGING $5 FOR EACH LETTER REQUIRED TO SPELL THE ITEM
BEN WAS BUYING HOME ADDRESS NUMBERS AND THEY COST $1 PER DIGIT
THE BOOK COSTS $2. LET THE COST BE X. WE KNOW THAT: X = 1 + X/2 SOLVING FOR X WILL GIVE 2
$25. THE PRICING METHOD CHARGES $5 FOR EACH LETTER NEEDED TO SPELL THE ITEM
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