Question
PSLE
Mark had biscuits and Brandon had muffins. Both gave half of what they had to each other. Mark sold 10 biscuits and Brandon sold 30 muffins. In the end, the ratios of biscuits to muffins for Mark and Brandon were 1 : 8 and 1 : 6 respectively. How many biscuits did Mark have at first?
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PSLE
Mark had biscuits and Brandon had muffins. Both gave half of what they had to each other. Mark sold 10 biscuits and Brandon sold 30 muffins. In the end, the ratios of biscuits to muffins for Mark and Brandon were 1 : 8 and 1 : 6 respectively. How many biscuits did Mark have at first?