Question

Митя купил 3 тетрадки по 15 рублей и одну ручку. Митя отдал продавцу100 рублей и получил сдачу 26 рублей. Сколько стоила ручка?

Answer 1

1)3*15=45 рублей стоят тетрадки
2)26+45=71 рубль-потратил денег кроме ручки
3)100-71=29 рублей -стоит ручка
Ответ:29 рублей

Answer 2

3*15=45
100-26=74
74-45=29
ответ:29 р

Answer 3

Calculation of the Cost of the Pen

To calculate the cost of the pen, we need to subtract the total cost of the notebooks from the amount Mitya paid to the seller, and then subtract the change he received.

Mitya bought 3 notebooks at a price of 15 rubles each, which gives us a total cost of 3 * 15 = 45 rubles.

He also bought one pen, the cost of which we need to find.

Mitya paid the seller 100 rubles and received 26 rubles in change.

To find the cost of the pen, we can subtract the total cost of the notebooks and the change from the amount Mitya paid to the seller:

Cost of the pen = Amount paid - Total cost of notebooks - Change Cost of the pen = 100 - 45 - 26

Let's calculate it:

Cost of the pen = 100 - 45 - 26 = 29 rubles.

Therefore, the pen cost 29 rubles.