Question

Фёдор принёс из магазина 3 кг яблок по цене 14 рублей за килограмм и в 2 раза больше помидоров, цена которых на 8 рублей больше, чем цена яблок. Сколько сдачи Федор должен отдать маме, если она дала ему на эту покупку с100 рублей?

Answer 1

3 кг. по 14руб.-значит на яблоки он потратил:
1)14*3=42 (руб)-на яблоки
2) (3*2)*(14+8)=44 (руб)-помидоры
3) 100-(42+44)=14 (руб)-сдача

Answer 2

Calculation of Change

To calculate the change that Fedor should give to his mother, we need to determine the total cost of the apples and tomatoes and subtract it from the amount his mother gave him.

Fedor bought 3 kg of apples at a price of 14 rubles per kilogram. Therefore, the cost of the apples is 3 kg * 14 rubles/kg = 42 rubles.

He bought twice as many tomatoes as apples. Since he bought 3 kg of apples, he bought 2 * 3 kg = 6 kg of tomatoes.

The price of tomatoes is 8 rubles more than the price of apples. Therefore, the price of tomatoes is 14 rubles/kg + 8 rubles = 22 rubles/kg.

The cost of the tomatoes is 6 kg * 22 rubles/kg = 132 rubles.

The total cost of the apples and tomatoes is 42 rubles + 132 rubles = 174 rubles.

Fedor's mother gave him 100 rubles.

To calculate the change, we subtract the total cost from the amount given by his mother: 100 rubles - 174 rubles = -74 rubles.

Therefore, Fedor should give his mother 74 rubles in change.

Please note that the change is negative because the amount given by his mother is less than the total cost of the apples and tomatoes.

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