Bài toán hay trong Violympic Toán tiếng Anh lớp 5 Vòng 3 năm học 2023 – 2024.
Đề bài: 1/9 of the shirts sold at Peter’s shop are striped. 5/8 of the remainder are printed. The rest of the shirts are plain colored shirts. If Peter’s shop has 81 plain colored shirts, how many more plain colored shirts than striped shirts does the shop have?
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