At 10 am on December 1st, there were 1 wolf, 22 cats, and 400 mice in the room. At 12 o'clock every day, the wolf would eat 2 cats. At 12 o'clock every night,
1 thought on “At 10 am on December 1st, there were 1 wolf, 22 cats, and 400 mice in the room. At 12 o'clock every day, the wolf would eat 2 cats. At 12 o'clock every night,”
Brenda
The cat is reduced by 2 a day. On the first day, there are 22-2 = 20 cats. Eat 20 mice, that is, reduce 2 mice a day, (20 0) × 11 ÷ 2 = 110 (only), 400-110 = 290 (only); : There are 290 mice in the room. The answer is: 290.
The cat is reduced by 2 a day. On the first day, there are 22-2 = 20 cats. Eat 20 mice, that is, reduce 2 mice a day,
(20 0) × 11 ÷ 2 = 110 (only),
400-110 = 290 (only);
: There are 290 mice in the room.
The answer is: 290.