Question
PSLE
The ratio of the number of coats to that of sweaters in a shopping centre was 4 : 3 at first. After 161 sweaters were sold, the ratio of the number of coats to that of sweaters became 9 : 1. What was the total number of coats and sweaters in the shopping centre at first?
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PSLE
The ratio of the number of coats to that of sweaters in a shopping centre was 4 : 3 at first. After 161 sweaters were sold, the ratio of the number of coats to that of sweaters became 9 : 1. What was the total number of coats and sweaters in the shopping centre at first?