TIMO Khối 7 – Vòng Quốc gia (Heat Round) – Đề số 1

There are 4 statements on a piece of paper as shown below, and only one of them is correct. Write down the alphabet before the correct statement on the answer sheet.

Split 21, 24, 36, 38, 65, 77, 95 and 143 into 2 groups of 4 numbers such that the products of numbers in both groups are equal. Find the sum of the numbers of the group that contains 36.

Product: Tích; Equal: Bằng nhau; Sum: Tổng.

There are some $1, $2 and $5 coins. The number of $1 coins is 12 times of that of $2 coins. The total value of coins is $100. Find the number of $5 coins. 12 times of:

Gấp 12 lần;

Total value: Tổng giá trị