TIMO Khối 9 – Vòng Quốc gia (Heat Round) – Đề số 3
📄Description
📋Instructions
📝Exam Questions (25 questions)
Previewing the first 3 questions — the rest is saved for the exam itself.
The sum of 11 consecutive odd numbers is 253. Find the third largest number.
Sum: Tổng; Consecutive odd numbers: Số lẻ liên tiếp; Third largest number: Số lớn thứ ba.
There are 25 problems in a mathematics competition. The scores of each problem are allocated in the following ways: 4 marks will be given for a correct answer and 0 marks will be given from a wrong answer or for a blank answer. Find the minimum number of candidate(s) to ensure that 5 candidates will have the same scores in the competition.
điểm bằng nhau.
Allocated: Được quy định; Minimum number of candidates: Số thí sinh ít nhất; Same scores: Số
If 26664 abcd bcda cdab dabc + + + = , calculatea b c d + + + .
Calculate: Tính
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