Question

Корова за 4 дня съедает 12 кг сена.Сколько нужно заготовить сена на 7 дней А)18кг Б)24кг В)21кг

Answer 1

Ответ:21кг потому что 12:4=3(кг)- за день
и 3*7=21 кг

Answer 2

12:4=3 кг сена съедает корова за день
3*7=21 кг сена надо корове на 7 дней

Answer 3

Calculating the Amount of Hay Needed for 7 Days

To calculate the amount of hay needed for 7 days, we can use the given information that a cow eats 12 kg of hay in 4 days.

Step 1: Calculate the amount of hay a cow eats in 1 day. Step 2: Use the amount from Step 1 to find the total hay needed for 7 days.

Step 1: Calculate the Amount of Hay a Cow Eats in 1 Day

To find out how much hay a cow eats in 1 day, we can use the given information that a cow eats 12 kg of hay in 4 days.

12 kg of hay in 4 days can be calculated as: 12 kg / 4 days = 3 kg of hay per day.

Step 2: Total Hay Needed for 7 Days

Now that we know a cow eats 3 kg of hay per day, we can calculate the total hay needed for 7 days.

3 kg of hay per day for 7 days can be calculated as: 3 kg/day * 7 days = 21 kg of hay.

Therefore, the answer is В) 21 кг.