Question
PSLE
The ratio of the number of sweaters to that of dresses in a boutique was 3 : 1 at first. After 10 dresses were sold, the ratio of the number of sweaters to that of dresses became 11 : 3. What was the total number of sweaters and dresses in the boutique at first?
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PSLE
The ratio of the number of sweaters to that of dresses in a boutique was 3 : 1 at first. After 10 dresses were sold, the ratio of the number of sweaters to that of dresses became 11 : 3. What was the total number of sweaters and dresses in the boutique at first?