Problema Solution
Tim’s father bought some baseball cards. He paid $8 for every six cards that he bought. Later he sold them, making a $4 profit on every three cards. If he made a profit of $24 altogether, how many cards did he buy and then sell?
Answer provided by our tutors
let x = the number of cards he bought
he sold them and made $4 profit on every 3 cards that is: 4*(x/3)
we know that the profit altogether is $24 thus
4*(x/3) = 24
by solving we find
x = 18 cards
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Tim’s father bought and sold 18 cards.