Question
PSLE
The ratio of the number of shirts to that of sweaters in a factory outlet was 7 : 4 in the end. After 78 sweaters were sold, the ratio of the number of shirts to that of sweaters became 12 : 5. What was the total number of shirts and sweaters in the factory outlet in the end?
2 m

Click button first when a symbol is required. X

PSLE
The ratio of the number of shirts to that of sweaters in a factory outlet was 7 : 4 in the end. After 78 sweaters were sold, the ratio of the number of shirts to that of sweaters became 12 : 5. What was the total number of shirts and sweaters in the factory outlet in the end?