Question
PSLE
Perry and Cathy have some stamps. After Perry gives 50 stamps to Cathy, he has 18 stamps more than her. How many more stamps than Cathy does Perry have at first?
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PSLE
Perry and Cathy have some stamps. After Perry gives 50 stamps to Cathy, he has 18 stamps more than her. How many more stamps than Cathy does Perry have at first?