Question
Mr. Tay wants to buy the same type of pens. If he buys 7 pens, he will have $4 left. If he buys 11 pens, he will be short of $8.60. How much do 7 pens cost?
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Mr. Tay wants to buy the same type of pens. If he buys 7 pens, he will have $4 left. If he buys 11 pens, he will be short of $8.60. How much do 7 pens cost?