Question
Mr. Kong wants to buy the same type of pens. If he buys 8 pens, he will have $5 left. If he buys 11 pens, he will be short of $6.40. How much do 8 pens cost?
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Mr. Kong wants to buy the same type of pens. If he buys 8 pens, he will have $5 left. If he buys 11 pens, he will be short of $6.40. How much do 8 pens cost?