Question
PSLE
Jack had muffins and George had shortbreads. Both gave half of what they had to each other. Jack sold 9 muffins and George sold 27 shortbreads. In the end, the ratios of muffins to shortbreads for Jack and George were 1 : 7 and 1 : 5 respectively. How many muffins did Jack have at first?
4 m

Click button first when a symbol is required. X

PSLE
Jack had muffins and George had shortbreads. Both gave half of what they had to each other. Jack sold 9 muffins and George sold 27 shortbreads. In the end, the ratios of muffins to shortbreads for Jack and George were 1 : 7 and 1 : 5 respectively. How many muffins did Jack have at first?