TIMO Khối 9 – Vòng Quốc gia (Heat Round) – Đề số 1
📄Description
📋Instructions
📝Exam Questions (25 questions)
Previewing the first 3 questions — the rest is saved for the exam itself.
Selena's dessert is stolen, she asked her 4 guests and received replies: Hera: "David's stolen it." David: "Steve's stolen it." Ruby: "I have not stolen it." Steve: "David is lying." Given that only one of them had told lies, who stole Selena's dessert?
Lying: Nói dối; Told the truth: Nói thật.
If x, y and z are all prime numbers and y x x y z + = , find the value of z.
Prime: Số nguyên tố
Divide a rectangle into 3 6 identical small squares and paint each small square in either red or green. How many ways to paint them so that there doesn't exist a rectangle with area not less than four with four cells at four corners are painted in same color?
Rectangle: Hình chữ nhật; Identical small squares: Hình vuông nhỏ y hệt nhau; Area: Diện tích;
Cells: Ô; Corners: Góc.
⚠️Important Notes
- 1Ensure stable internet connection throughout the exam
- 2Your progress will be automatically saved periodically
- 3Do not open other tabs or windows during the exam
- 4Click "Submit" button when finished to complete the exam