Johnny Dangerously spotted a sale on small pets for his store that he couldn't resist. Giddy with visions of profit, he bought a certain number of hamsters and half that many pairs of parakeets. He paid $2 each for the hamsters and $1 for each parakeet. On every pet he [carefully] stuck a retail price that was a 10 per cent mark-up over what he paid for it.
After all but seven of the creatures had been sold, Johnny found that he had taken in for them an amount of money exactly equal to what he had originally paid for all of them. Wow. How cool was that. His potential profit was represented by the combined retail value of the seven remaining animals. What was this value?
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bonanova
Johnny Dangerously spotted a sale on small pets for his store that he couldn't resist. Giddy with visions of profit, he bought a certain number of hamsters and half that many pairs of parakeets. He paid $2 each for the hamsters and $1 for each parakeet. On every pet he [carefully] stuck a retail price that was a 10 per cent mark-up over what he paid for it.
After all but seven of the creatures had been sold, Johnny found that he had taken in for them an amount of money exactly equal to what he had originally paid for all of them. Wow. How cool was that. His potential profit was represented by the combined retail value of the seven remaining animals. What was this value?
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