Question
PSLE
Peter had croissants and Elijah had muffins. Both gave half of what they had to each other. Peter sold 15 croissants and Elijah sold 28 muffins. In the end, the ratios of croissants to muffins for Peter and Elijah were 1 : 4 and 1 : 2 respectively. How many croissants did Peter have at first?
4 m

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PSLE
Peter had croissants and Elijah had muffins. Both gave half of what they had to each other. Peter sold 15 croissants and Elijah sold 28 muffins. In the end, the ratios of croissants to muffins for Peter and Elijah were 1 : 4 and 1 : 2 respectively. How many croissants did Peter have at first?