Question
PSLE
The ratio of the number of butter cream muffins to chocolate muffins is 4 : 5. The ratio of the number of mocha muffins to the total number of butter cream muffins and chocolate muffins is 4 : 1. What fraction of the muffins are butter cream muffins?
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PSLE
The ratio of the number of butter cream muffins to chocolate muffins is 4 : 5. The ratio of the number of mocha muffins to the total number of butter cream muffins and chocolate muffins is 4 : 1. What fraction of the muffins are butter cream muffins?