Question

Из закупленного магазином картофеля в понедельник было продано 40%,а во вторник 50% оставшегося картофеля. Сколько процентов картофеля осталось непроданным?

Answer 1

Calculation of Remaining Unsold Potatoes

To calculate the percentage of potatoes that remained unsold, we need to determine the amount of potatoes sold on Monday and Tuesday and subtract it from the total amount of potatoes purchased by the store.

Let's assume that the store purchased 100 kilograms of potatoes.

On Monday, 40% of the purchased potatoes were sold. This means that 40 kilograms of potatoes were sold on Monday, leaving 60 kilograms unsold.

On Tuesday, 50% of the remaining unsold potatoes were sold. Since there were 60 kilograms of potatoes left after Monday, 50% of 60 kilograms is 30 kilograms. Therefore, 30 kilograms of potatoes were sold on Tuesday.

To calculate the percentage of potatoes that remained unsold, we need to subtract the total amount of potatoes sold (40 kilograms + 30 kilograms = 70 kilograms) from the total amount purchased (100 kilograms).

The remaining unsold potatoes can be calculated as follows:

100 kilograms (total purchased) - 70 kilograms (total sold) = 30 kilograms (remaining unsold)

To express this as a percentage, we can use the formula:

Percentage = (Remaining Unsold Potatoes / Total Purchased Potatoes) * 100

Substituting the values:

Percentage = (30 kilograms / 100 kilograms) * 100 = 30%

Therefore, 30% of the purchased potatoes remained unsold.