Question

Задача:Нина купила 3 футболки по цене 400 рублей. 2 пары носков по цене на 140 руб. дешевле,чем одна футболка. после этого у неё осталось 180 рублей . сколько всего рублей было у Нины сначала?

Answer 1

Ну одна футболка стоит 400 рублей ,значит две пары носков стоят на 140 рублей дешевле футболки, 400-140-260 рублей. Всего она потратила 400*3+260 = 1200*260=1460 рублей и ещё 180 осталось. Значит всего было 1460+180=1640 рублей.

Answer 2

3*400=1200
2*(400-140)= 520
520+1200= 1720
1720+180= 1900

Answer 3

Task: Calculating Nina's Initial Amount of Money

To calculate the initial amount of money Nina had, we need to consider the cost of the items she bought and the amount of money she had left.

Nina bought: - 3 t-shirts for 400 rubles each, totaling 3 * 400 = 1200 rubles. - 2 pairs of socks that were 140 rubles cheaper than one t-shirt. Let's assume the price of one t-shirt is x rubles. Therefore, the price of one pair of socks is (x - 140) rubles. The total cost of the socks is 2 * (x - 140) = 2x - 280 rubles.

After buying these items, Nina had 180 rubles left.

To find the initial amount of money Nina had, we can set up the following equation:

Initial amount of money - (cost of t-shirts + cost of socks) = amount of money left

Let's solve this equation to find the initial amount of money Nina had.

Initial amount of money - (1200 rubles + (2x - 280) rubles) = 180 rubles

Simplifying the equation:

Initial amount of money - 1200 rubles - 2x + 280 rubles = 180 rubles

Initial amount of money - 2x - 920 rubles = 180 rubles

Initial amount of money - 2x = 180 rubles + 920 rubles

Initial amount of money - 2x = 1100 rubles

Now, we need to find the value of x to solve the equation.

Unfortunately, the search results provided do not contain the specific information needed to find the value of x or directly answer the question. Therefore, we cannot provide the exact initial amount of money Nina had without additional information.

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