TIMO Khối 6 – Vòng Quốc gia (Heat Round) – Đề số 5

There are some chickens and rabbits in a cage. The number of chickens is 3 times and 10 more as the number of rabbits. They have 110 legs in total. How many chicken(s) is / are there? 3 times and 10 more:

Gấp 3 lần và nhiều hơn 10 con nữa;

In total: Tổng số

Every cell A will split into 2 cell B after 1 minute and every cell B will split into 2 cell A after 2 minutes. There are few cells A now. After 10 minutes, scientists observe 1792 cells. How many cells are there in the beginning?

Cell: Tế bào; Split: Tách đôi; Observe: Quan sát được.

A book store had a box of text books. One half and 8 fewer books were sold on the first day. One half of the remaining part and 2 more books were sold on the second day. One half of the remaining part and 1 fewer book were sold on the third day. Finally, 9 books are left. How many book(s) did the box contain originally?

Ban đầu.

One half: Một nửa; Remaining part: Phần còn lại; Fewer: Ít hơn; More: Nhiều hơn; Originally: