Question
PSLE
Eric had muffins and Ian had wafers. Both gave half of what they had to each other. Eric sold 9 muffins and Ian sold 30 wafers. In the end, the ratios of muffins to wafers for Eric and Ian were 1 : 4 and 1 : 2 respectively. How many muffins did Eric have at first?
4 m

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PSLE
Eric had muffins and Ian had wafers. Both gave half of what they had to each other. Eric sold 9 muffins and Ian sold 30 wafers. In the end, the ratios of muffins to wafers for Eric and Ian were 1 : 4 and 1 : 2 respectively. How many muffins did Eric have at first?