Question

Покупатель потратил 45% своих денег на покупку продуктов питания. Сколько денег покупатель потратил, если у него осталось 1100 рублей?

Answer 1

Значит 1100 это 55% от всей сумму. Тогда сумма равна 1100*100/55=2000
А потратил он 2000-1100=900р

Answer 2

Составим пропорцию 
55-1100
100-x
x=100*1100/55=2000руб
2000-1100=900

Answer 3

Calculation of the Amount Spent by the Buyer

To calculate the amount of money the buyer spent on food, we need to find 45% of the total amount of money the buyer had. The remaining 55% would be the amount of money the buyer has left.

Let's calculate it step by step:

1. We know that the buyer has 1100 rubles left. 2. We need to find the total amount of money the buyer had before spending 45% on food. 3. To find the total amount, we can use the formula: Total amount = Amount spent / (100% - Percentage spent). 4. Plugging in the values, we get: Total amount = 1100 / (100% - 45%). 5. Simplifying the equation, we get: Total amount = 1100 / 55%. 6. To find the amount spent on food, we can use the formula: Amount spent = Total amount * Percentage spent. 7. Plugging in the values, we get: Amount spent = Total amount * 45%.

Let's calculate the amount spent:

Amount spent = Total amount * 45% = (1100 / 55%) * 45%

To calculate this, we need to know the total amount the buyer had before spending. Unfortunately, the given information does not provide the total amount the buyer had initially. Therefore, we cannot calculate the exact amount spent by the buyer.

Please provide the total amount the buyer had initially, and I will be able to calculate the amount spent on food.