Question

Наташа купила на 16 рублей 4 одинаковые открытки сколько марок можно купить на 28 руб если одна марка стоит на 3руб дороже?

Answer 1

16÷4=4 руб стоит одна открытка
4+3=7 руб стоит одна марка
28÷7=4 шт,
Ответ: можно купить 4 марки

Answer 2

Calculation of the Number of Stamps Natasha Can Buy

To calculate the number of stamps Natasha can buy with 28 rubles, we need to determine the price of one stamp and then divide the total amount of money by the price of one stamp.

Given that one stamp costs 3 rubles more than the price of an individual card, we need to find the price of one card first.

Natasha bought 4 identical cards for 16 rubles, so the price of one card can be calculated by dividing the total cost by the number of cards:

Price of one card = Total cost / Number of cards = 16 rubles / 4 cards = 4 rubles.

Now that we know the price of one card, we can calculate the price of one stamp:

Price of one stamp = Price of one card + 3 rubles = 4 rubles + 3 rubles = 7 rubles.

Finally, we can calculate the number of stamps Natasha can buy with 28 rubles:

Number of stamps = Total amount of money / Price of one stamp = 28 rubles / 7 rubles = 4 stamps.

Therefore, Natasha can buy 4 stamps with 28 rubles.