Question
Mark had 1151 laptops and some headphones in his shop. After selling 157 laptops and buying another 180 headphones, he had the same number of laptops and headphones. How many headphones did Mark have at first?
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Mark had 1151 laptops and some headphones in his shop. After selling 157 laptops and buying another 180 headphones, he had the same number of laptops and headphones. How many headphones did Mark have at first?