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2023-01-09 12:35:35
a. s
b. đ
c. đ
d. s
2023-01-09 12:32:22
1. tỉ số phần trăm của 5 và 8 là: 5/8 * 100% = 62,5 %
2. 30% của 250kg là: 250*30/100 = 75