Question:
Kim, May & Yan collect some stamps. Kim & May have 220 stamps more than Yan. Yan and May have 140 stamps more than Kim. Kim and Yan has 500 stamps. How many stamps does May have?
Solution:

Empowering Students and Parents with Solutions
Kim, May & Yan collect some stamps. Kim & May have 220 stamps more than Yan. Yan and May have 140 stamps more than Kim. Kim and Yan has 500 stamps. How many stamps does May have?