Question
PSLE
The ratio of the number of skirts to that of sweaters in a factory outlet was 5 : 2 at first. After 21 sweaters were sold, the ratio of the number of skirts to that of sweaters became 4 : 1. What was the total number of skirts and sweaters in the factory outlet at first?
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PSLE
The ratio of the number of skirts to that of sweaters in a factory outlet was 5 : 2 at first. After 21 sweaters were sold, the ratio of the number of skirts to that of sweaters became 4 : 1. What was the total number of skirts and sweaters in the factory outlet at first?