Question
PSLE
The ratio of the number of sweaters to that of vests in a factory outlet was 11 : 7 in the end. After 40 vests were sold, the ratio of the number of sweaters to that of vests became 9 : 5. What was the total number of sweaters and vests in the factory outlet in the end?
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PSLE
The ratio of the number of sweaters to that of vests in a factory outlet was 11 : 7 in the end. After 40 vests were sold, the ratio of the number of sweaters to that of vests became 9 : 5. What was the total number of sweaters and vests in the factory outlet in the end?