Question

В магазин привезли 800 кг картофеля до обеда продали 3/10 а после обеда 5/10 привезённого картофеля.На сколько килограммов картофеля проданно больше после обеда,чем до обеда?

Answer 1

1) $800* \frac{3}{10}= \frac{800*3}{10} = \frac{2400}{10}= \frac{240}{1} = 240$ (кг) картофеля  продали до обеда
2) $800* \frac{5}{10} = \frac{800*5}{10}= \frac{4000}{10}= \frac{400}{1} = 400$ (кг) картофеля продали после обеда
3) 400-240=на 160 (кг) картофеля продали больше после обеда, чем до.

Ответ: на 160 кг

Answer 2

Calculation of Potato Sold Before and After Lunch

To calculate the difference in the amount of potatoes sold before and after lunch, we need to determine the quantities sold before and after lunch separately.

Given: - Total quantity of potatoes brought to the store: 800 kg - Portion sold before lunch: 3/10 - Portion sold after lunch: 5/10

To find the amount of potatoes sold before lunch, we multiply the total quantity by the portion sold before lunch:

Potatoes sold before lunch = (3/10) * 800 kg

To find the amount of potatoes sold after lunch, we multiply the total quantity by the portion sold after lunch:

Potatoes sold after lunch = (5/10) * 800 kg

Now we can calculate the difference in the amount of potatoes sold after lunch compared to before lunch:

Difference = Potatoes sold after lunch - Potatoes sold before lunch

Let's calculate the values:

Potatoes sold before lunch = (3/10) * 800 kg = 240 kgPotatoes sold after lunch = (5/10) * 800 kg = 400 kgDifference = 400 kg - 240 kg = 160 kg

Therefore, the amount of potatoes sold after lunch is 160 kg more than the amount sold before lunch.