Question
PSLE
The ratio of the number of shirts to that of blazers in a boutique was 3 : 1 at first. After 12 blazers were sold, the ratio of the number of shirts to that of blazers became 7 : 1. What was the total number of shirts and blazers in the boutique at first?
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PSLE
The ratio of the number of shirts to that of blazers in a boutique was 3 : 1 at first. After 12 blazers were sold, the ratio of the number of shirts to that of blazers became 7 : 1. What was the total number of shirts and blazers in the boutique at first?